| [ X ]  | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF  1934 |
|--------|-------------------------------------------------------------------------------------------------|
|   | For the fiscal year ended   March 26, 2011 ,                                          |

|   |   |
|--------|--------|

| [    ] | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|----------------------------|------------------------------------------------------------------------------------------|
|                       | For the transition period from _____________  to  _____________.     |

|   | Commission File No. 0-12719 |
|--------|-----------------------------|

| GIGA-TRONICS INCORPORATED                              |
|--------------------------------------------------------|
| (Exact name of registrant as specified in its charter) |

| California                                                     |   | 94-2656341                           |
|----------------------------------------------------------------|--------|--------------------------------------|
| (State or other jurisdiction of incorporation or organization) |   | (I.R.S. Employer Identification No.) |
|                                                           |   |                                 |
| 4650 Norris Canyon Road, San Ramon, CA                         |   | 94583                                |
| (Address of principal executive offices)                       |   | (Zip Code)                           |

|   | Registrant’s telephone number, including area code:  (925) 328-4650 |
|--------|-------------------------------------------------------------------------------------|

|   | Securities registered pursuant to Section 12(b) of the Act: |
|--------|-------------------------------------------------------------|

| Title of each class        |   | Name of each exchange on which registered |
|----------------------------|--------|-------------------------------------------|
| Common Stock, No par value |   | The NASDAQ Stock Market LLC               |

|   | Securities registered pursuant to Section 12(g) of the Act:  None. |
|--------|------------------------------------------------------------------------------|

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| Large accelerated filer        | [  ] |   | Accelerated filer         | [  ] |
|-----------------------------------------------|----------------|--------|---------------------------|----------------|
|                                          |           |   |                      |           |
| Non-accelerated filer                         | [  ] |   | Smaller reporting company | [ X ]          |
| (Do not check if a smaller reporting company) |           |   |                      |

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|  Name and Principal Occupation                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Director Since |  Age |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|-----------|
| George H. Bruns, Jr. Chairman of the Board until February 2008 and a Director of the Company.  Chief Executive Officer from January 1995 until April 2006.  He provided seed financing for the Company in 1980 and has been a Director since inception.  Mr. Bruns is General Partner of The Bruns Company, a private venture investment and management consulting firm.  Mr. Bruns is a Director of Testronics, Inc. of McKinney, Texas.  Mr. Bruns has been nominated primarily because of his long experience in the industry and his thorough knowledge of the Company.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 1980           | 92        |
| James A. Cole General Partner of Windward Ventures, General Partner of Spectra Enterprise Associates, Founder and President of Amplica, Inc. and presently a director of Syntricity, CAP Wireless, KOR Electronics and Akatoo, all private companies.  Mr. Cole is also a Trustee at Mount St. Mary’s College in Los Angeles, CA.  Mr. Cole has been nominated because of his broad business experience and industry knowledge.   Member:  Audit and Nominating Committees                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 1994           | 69        |
| Garrett A. Garrettson Chairman of the Board of Directors of Giga-tronics Inc. since February 2008.  Garrett Garrettson is currently President of G. Garrettson Consulting LLC, providing management consulting to public and private companies.  From December 2005 until January 2008 Dr. Garrettson was President and CEO of Fresco Technologies, a private digital imaging company, and from November 2001 until September 2004, he was President and CEO of Clairvoyante, a private company that developed and licensed critical technology to the flat panel display industry.  From 1996 until 2002, he held the position of Chairman, and before that President & CEO, of Spectrian Corporation, a public company that developed, manufactured and sold wireless telecommunications infrastructure equipment and semiconductors. Before Spectrian he spent ten years in the data storage industry as President & CEO of Censtor Corporation, a Vice President at Seagate Technology and a Vice President at Control Data.  He began his career as a Director at HP Laboratories after being an Assistant Professor of Physics, Naval Postgraduate School. He was educated at Stanford in Engineering Physics, receiving his PhD in Nuclear Engineering.  In addition to being a Director of Giga-tronics, he is a Director of Iridex and GSI Group.  Mr. Garrettson is nominated primarily because of his leadership skills and his executive experience in the industry. Member:  Compensation Committee  | 2006           | 68        |
| Kenneth A. Harvey President of Peak Consulting Group.  Former CEO of Advanced Wireless & Telecom, Vice President and General Manager of Credence Systems Corporation.  Co-founded Modulation Instruments where he served as President and CEO.  Mr. Harvey is nominated primarily because of his executive experience in the industry, technical knowledge, and his familiarity with accounting and SEC issues. Member:  Audit and Compensation Committees                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | 2002           | 46        |

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| John R. Regazzi Chief Executive Officer and a Director of the Company since April 2006.  Mr. Regazzi had been President and General Manager of Instrument Division since August 2005, and prior to that, was Vice President of Operations for Instrument Division from October 2004 through August 2005.  Prior to that, he was Vice President of Engineering for Instrument Division from June 2001 through October 2004. Previous experience includes 22 years at Hewlett Packard and Agilent Technologies in various design and management positions associated with their microwave sweeper and synthesizer product lines. His final position at Agilent Technologies was as a senior engineering manager.  Mr. Regazzi is nominated primarily because of his role as Chief Executive Officer, his RF and Microwave expertise, and his depth of experience in the industry.  | 2006 | 56 |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------|----|
| Robert C. Wilson Former Chairman of Wilson & Chambers, a private investment firm.  Prior to that, Mr. Wilson was Vice President of General Electric, Executive Vice President of Rockwell International, CEO of Collins Radio, and CEO of Memorex.  Mr. Wilson is nominated primarily because of his executive experience, his financial background and his familiarity with accounting issues. Member:  Audit, Nominating and Compensation Committees                                                                                                                                                                                                                                                                                                                                                                                                                       | 1991 | 91 |

| Name                       |   | Age    |   | Position                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|----------------------------|--------|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| John R. Regazzi            |   | 56     |   | See previous table.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|                       |   |   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Patrick J. Lawlor          |   | 60     |   | Vice President, Finance, Chief Financial Officer and Secretary of Giga-tronics, Inc. since February 2007.  Previously he was a Consultant to PDL BioPharma, Inc.; Vice President, Chief Financial Officer at SaRonix, LLC; Chief Financial Officer with Aerojet Fine Chemicals, LLC; and Vice President of Finance with Systems Chemistry, Inc.  Mr. Lawlor spent 23 years with Westinghouse Electric Corporation, where he rose through numerous positions among various divisions, with his final position as Vice President of Finance and Controller.                                                                                                                                                                   |
|                       |   |   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Jeffrey T. Lum   |   | 65     |   | Chief Technology Officer of Giga-tronics since April 2007 and founder of ASCOR.  Mr. Lum founded ASCOR in 1987 and has been President since inception.  Mr. Lum was a founder and Vice President of Autek Systems Corporation, a manufacturer of precision waveform analyzers.  Mr. Lum is on the Board of Directors for the Santa Clara Aquamaids, a non-profit organization dedicated to advancing athletes in synchronized swimming to the Olympic games.                                                                                                                                                                                                                                       |
|                       |   |   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Malcolm E. Levy            |   | 61     |   | Vice President, Sales & Marketing since September 2008.  Mr. Levy has over 25 years of Sales and Marketing experience in the Test & Measurement industry.  His career started in sales with Racal Instruments in the U.K.  A background in RF and Communications made him an ideal candidate to move to the U.S. and become the sales and marketing manager for all U.K. manufactured instruments, including low noise fast switching synthesizers.  His final position at Racal Instruments after 20 years of service was Executive Vice President, Sales and Marketing.  Since leaving Racal in 2001 he has helped wireless test companies grow their international sales business. |

----

----

|   | · | The nominee should have a reputation for integrity and honesty. |
|--------|--------|-----------------------------------------------------------------|

|   | · | The nominee should have demonstrated business experience and the ability to exercise sound judgment. |
|--------|--------|------------------------------------------------------------------------------------------------------|

|   | · | The nominee should have an understanding of the Company and its industry. |
|--------|--------|---------------------------------------------------------------------------|

|   | · | The nominee should have the ability and willingness to act in the interests of the Company and its shareholders. |
|--------|--------|------------------------------------------------------------------------------------------------------------------|

|   | · | The nominee should not have a conflict of interest that would impair the nominee’s ability to fulfill the responsibilities of a director. |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------|

----

----

| Name andPrincipal Position(a)                                       |   | Fiscal Year(b) |   | Salary($)(c) |    |   | Bonus($)(d) |    |   | Option Awards (1) (2) ($)(f) |   |   | All Other Compensation (3) ($)(i) |   |   | Total($)(j) |   |
|---------------------------------------------------------------------|--------|----------------|--------|--------------|---------|--------|-------------|---------|--------|------------------------------|--------|--------|-----------------------------------|--------|--------|-------------|--------|
| Patrick J. Lawlor                                                   |   | 2011           |   | $            | 141,923 |   |        |    | ---    |                         |   |   | ---                               |   |   | $           | 690    |   |   | $ | 142,613 |   |
|     VP Finance, CFO & Secretary             |   | 2010           |   | $            | 128,249 |   |        | $       | 44,518 |                         |   | $      | 12,735                            |   |   | $           | 538    |   |   | $ | 186,040 |   |
| Malcolm E. Levy                                                     |   | 2011           |   | $            | 140,000 |   |        |    | ---    |                         |   |   | ---                               |   |   | $           | 36,093 |   |   | $ | 176,093 |   |
|      Vice President, Sales & Marketing |   | 2010           |   | $            | 161,434 |   |        |    | ---    |                         |   | $      | 9,551                             |   |   | $           | 807    |   |   | $ | 171,792 |   |
| Jeffrey T. Lum                                                      |   | 2011           |   | $            | 125,820 |   |        |    | ---    |                         |   | $      | 23,903                            |   |   | $           | 774    |   |   | $ | 150,497 |   |
|     President, ASCORCTO, Giga-tronics           |   | 2010           |   | $            | 121,949 |   |        | $  | 32,553 |                         |   | $      | 31,837                            |   |   | $           | 610    |   |   | $ | 186,949 |   |
| John R. Regazzi                                                     |   | 2011           |   | $            | 156,923 |   |        |    | ---    |                         |   |   | ---                               |   |   | $           | 779    |   |   | $ | 157,702 |   |
|     Chief Executive Officer                     |   | 2010           |   | $            | 140,185 |   |        | $       | 52,753 |                         |   | $      | 25,470                            |   |   | $           | 701    |   |   | $ | 219,109 |   |

|   | (1) | Stock options granted under Giga-tronics' 2000 Stock Option Plan and the 2005 Employee Incentive Plan.  The value for Stock Option Awards in the table above represents grant date fair value of Stock Option Awards for fiscal year 2011 and 2010.  For Option Awards, the dollar amount for each individual varies depending on the number of options granted, the fair value of such options, and the vesting terms of such options.  See Note 1 of the audited consolidated financial statements for the fiscal year ended March 26, 2011 for information on the assumptions used to calculate the grant date fair value of Option Awards and the expense recognized under ASC 718. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (2) | Excludes 90,000 restricted stock awards that vest over 3 years based on performance conditions that are not expected to be met as of the date of the filing. |
|--------|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (3) | Includes contributions made by Giga-tronics to its 401(k) Plan which match in part the pre-tax elective deferral contributions included under Salary made to the 401(k) plan by the executive officers. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   Name(a) |   | Number ofSecurities UnderlyingUnexercised Options(#) Exercisable(b) |   | Number ofSecurities UnderlyingUnexercised Options(#) Unexercisable(c) |   | OptionExercisePrice ($)(e) |   |  OptionExpirationDate(f) |  Restricted Stocks (1)(g) |
|---------------------|--------|---------------------------------------------------------------------|--------|-----------------------------------------------------------------------|--------|----------------------------|--------|-------------------------------|--------------------------------|
| Patrick J. Lawlor   |   |                                                                | 18,750 |                                                                  |   |                       | ---    |                          |                           | $  | 1.96 |   | 3/20/2012 |   |   |   |
|                |   |                                                                | 7,500  |                                                                  |   |                       | 3,750  |                          |                           | $  | 1.85 |   | 11/13/2012 |   |   |   |
|                |   |                                                                | 2,500  |                                                                  |   |                       | 7,500  |                          |                           | $  | 1.95 |   | 8/18/2014 |   |   |   |
|                |   |                                                                | ---    |                                                                  |   |                       | 10,000 |                          |                           | $  | 0.00 |   | 8/17/2013 |   |   | 30,000 |   |
| Malcolm E. Levy     |   |                                                                | 37,500 |                                                                  |   |                       | 37,500 |                          |                           | $  | 1.14 |   | 9/02/2013 |   |   |   |   |
|                |   |                                                                | 1,875  |                                                                  |   |                       | 5,625  |                          |                           | $  | 1.95 |   | 8/18/2014 |   |   |   |   |
| Jeffrey T. Lum      |   |                                                                | 16,650 |                                                                  |   |                       | ---    |                          |                           | $  | 1.43 |   | 9/12/2011 |   |   |   |   |
|                |   |                                                                | 7,500  |                                                                  |   |                       | 2,500  |                          |                           | $  | 1.85 |   | 11/13/2012 |   |   |   |   |
|                |   |                                                                | 6,250  |                                                                  |   |                       | 18,750 |                          |                           | $  | 1.95 |   | 8/18/2014 |   |   |   |   |
|                |   |                                                                | ---    |                                                                  |   |                       | 15,000 |                          |                           | $  | 2.40 |   | 6/03/2015 |   |   |   |   |
| John R. Regazzi     |   |                                                                | 35,000 |                                                                  |   |                       | ---    |                          |                           | $  | 2.65 |   | 4/21/2011 |   |   |   |   |
|                |   |                                                                | 81,500 |                                                                  |   |                       | ---    |                          |                           | $  | 2.31 |   | 11/14/2011 |   |   |   |   |
|                |   |                                                                | 1,500  |                                                                  |   |                       | 15,000 |                          |                           |  $  | 1.95 |   | 8/18/2014 |   |   |   |   |
|                |   |                                                                | ---    |                                                                  |   |                       | 20,000 |                          |                           | $  | 0.00 |   | 6/03/2013 |   |   | 60,000 |   |

|   | (1) | The restricted stocks awarded are performance-based with vesting over 3 years.  Management does not believe the performance criteria will be met as of the date of this filing. |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

|  Name            |   | Fees Earned or Cash Paid ($) |   |   | Option Awards (1) ($) |   |   | Non-EquityIncentive Plan Compen-sation ($) |   |   | Change in Pension Value and Non-qualified Deferred Compensation Earnings |   |   | All Other Compen-sation ($) |   |   | Total ($) |   |
|-----------------------|--------|------------------------------|--------|--------|----------------------------|--------|--------|--------------------------------------------|--------|--------|--------------------------------------------------------------------------|--------|--------|-----------------------------|--------|--------|-----------|--------|
| (a)                   |   | (b)                          |   |   | (d)                        |   |   | (e)                                        |   |   | (f)                                                                      |   |   | (g)                         |   |   | (h)       |   |
| George H. Bruns, Jr.  |   | $                            | 17,500 |   |                       | $      | 15,935 |                                       |   |   | --                                                                       |   |   |                        | --     |   |      |   | -- |   |   | $ | 33,435 |   |
| James A. Cole         |   | $                            | 20,250 |   |                       | $      | 15,935 |                                       |   |   | --                                                                       |   |   |                        | --     |   |      |   | -- |   |   | $ | 36,185 |   |
| Garrett A. Garrettson |   | $                            | 31,000 |   |                       | $      | 23,903 |                                       |   |   | --                                                                       |   |   |                        | --     |   |      |   | -- |   |   | $ | 54,903 |   |
| Kenneth A. Harvey     |   | $                            | 20,500 |   |                       | $      | 15,935 |                                       |   |   | --                                                                       |   |   |                        | --     |   |      |   | -- |   |   | $ | 36,435 |   |
| Robert C. Wilson      |   | $                            | 21,250 |   |                       | $      | 15,935 |                                       |   |   | --                                                                       |   |   |                        | --     |   |      |   | -- |   |   | $ | 37,185 |   |

|   | (1)  The value for Stock Option Awards in the table above represents grant date fair value of Stock Option Awards.  For Option Awards, the dollar amount for each individual varies depending on the number of options granted, the fair value of such options, and the vesting terms of such options.  See Note 1 of the audited consolidated financial statements for the fiscal year ended March 26, 2011 for information on the assumptions used to calculate the grant date fair value of Option Awards and the expense recognized under ASC 718.  At March 26, 2011, Mr. Garrettson held options to purchase 50,000 shares of common stock, Mr. Bruns held options to purchase 20,000 shares of common stock while the remaining directors listed above held options to purchase 35,000 shares of common stock. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|  Name of Beneficial Owner                                                                                      |   | Amount and Natureof Beneficial Ownership |    | Percentage ofTotal OutstandingCommon Stock |
|---------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------------|---------|--------------------------------------------|
| George H. Bruns, Jr. 4650 Norris Canyon Road San Ramon,  California 94583                       |   |                                          | 310,273 | (1)                                        |   |   | 6.1 | % |
| James A. Cole 2291 Melford Court Thousand Oaks, California 91361                                          |   |                                          | 91,094  | (2)                                        |   |   | 1.79 |   |
| Garrett A. Garrettson    P.O. Box 157 Pebble Beach, California 93953                       |   |                                          | 11,250  | (3)                                        |   |   | 0.22 |   |
| Kenneth A. Harvey 4650 Norris Canyon Road San Ramon, California 94583                                     |   |                                          | 23,054  | (4)                                        |   |   | 0.45 |   |
| Patrick J. Lawlor 4650 Norris Canyon Road San Ramon, California 94583                                     |   |                                          | 124,680 | (5)                                        |   |   | 2.44 |   |
| Malcolm E. Levy    4650 Norris Canyon Road    San Ramon CA  94583 |   |                                          | 62,200  | (6)                                        |   |   | 1.21 |   |
| Jeffrey T. Lum 4650 Norris Canyon Road San Ramon, California 94583                                        |   |                                          | 37,114  | (7)                                        |   |   | 0.73 |   |
| John R. Regazzi   4650 Norris Canyon Road   San Ramon, California 94583               |   |                                          | 199,000 | (8)                                        |   |   | 3.85 |   |
| Robert C. Wilson 620 Sand Hill Road #413-G Palo Alto, California 94304                                    |   |                                          | 7,500   | (9)                                        |   |   | 0.15 |   |
| All executive officers and directors as a group   (9 persons, including those above)                 |   |                                          | 866,165 | (10)                                       |   |   | 16.53 |   |
|                                                                                                                |   |                                          |    |                                       |   |   |   |   |
| Renaissance Technologies LLCJames H. Simons   800 Third Ave, 33rd Fl, New York, NY 10022             |   |                                          | 233,500 |                                       |   |   | 4.59 | % |

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|                                                                                      |   |
|-------------------------------------------------------------------------------------------|--------|
|                                                                                      |   | No. of securities to be issued upon exercise of outstanding options, warrants and rights |   |   | Weighted average exercise price of outstanding options, warrants and rights |   |   | No. of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) |   |
| Plan category                                                                             |   | (a) |   |   | (b) |   |   | (c) |   |
| Equity compensation plans     approved by securities holders     |   |  885,014 |   |   |   | $1.9608 |   |   |   |  155,725 |   |   |
| Equity compensation plans not     approved by securities holders |   |  n/a |   |   |   |  n/a |   |   |   |  n/a |   |   |
| Total                                                                                     |   |  885,014 |   |   |   | $1.9608 |   |   |   |  155,725 |   |   |

|                   |   | 2011   |    |   | 2010   |   |
|------------------------|--------|--------|---------|--------|--------|--------|
| Audit fees (1)         |   | $      | 183,000 |   |   | $      | 176,000 |   |
| Audit-related fees (2) |   | $      | 23,000  |   |   | $      |    3,000 |   |
| Tax fees (3)           |   | $      | 13,000  |   |   |   | — |   |
| All other fees         |   |   | — |   |   |   | — |   |

|   | (1) | Audit fees consist of fees for professional services rendered for the audit of the Company’s consolidated financial statements, review of consolidated financial statements included in the Company’s quarterly reports and services normally provided by the independent auditor in connection with statutory and regulatory filings or engagements. |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (2) | Audit-related fees represent fees for professional services such as merger related services and technical accounting, consulting and research. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (3) | Tax services consist of a limited scope review of the Company’s net operating loss carry-forwards and other tax-related consulting services. |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | (a) The following consolidated financial statements of Giga-tronics Incorporated and subsidiaries and the related independent registered public accounting firm are filed herewith: |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 1. | Financial Statements.  See Index to Financial Statements on page 18.  The financial statements and Report of Independent Registered Public Accounting Firm are included in Item 8 are filed as part of this report. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 2. | Exhibits.  The exhibit list required by this item is incorporated by reference to the Exhibit Index filed with this report.                                                                                                   |

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|             | GIGA-TRONICS INCORPORATED                          |
|------------------|----------------------------------------------------|
|             |                                               |
|             |                                               |
| Dated: 7/25/2011 | /s/ JOHN R. REGAZZI                                |
|             | Chief Executive Officer                            |
|             |                                               |
|             |                                               |
| Dated: 7/25/2011 | /s/ PATRICK J. LAWLOR                              |
|             | VP Finance/Chief Financial Officer & Secretary |

----

| Index To Exhibits |
|-------------------|
|              |   |   |
|   3.1   |   | Articles of Incorporation of the Registrant, as amended, previously filed as Exhibit 3.1 to Form 10-KSB for the fiscal year ended March 27, 1999 and incorporated herein by reference. |
|              |   |   |
|   3.2   |   | Amended and Restated Bylaws of Giga-tronics Incorporated, as amended on March 7, 2008, previously filed as Exhibit 3.2 to Form 10-K for the fiscal year ended March 29, 2008, and incorporated herein by reference. |
|              |   |   |
| 10.1              |   | Standard form Indemnification Agreement for Directors and Officers, previously filed as Exhibit 10.1 to Form 10-K for the fiscal year ended March 27, 2010, and incorporated herein by reference. |
|              |   |   |
| 10.2              |   | First Amendment to Office Lease Agreement between Giga-tronics Incorporated and VIF/ZKS Norris Tech Center, LLC, for 4650 Norris Canyon Road, San Ramon, CA, dated March 29, 2010, previously filed as Exhibit 10.2 to Form 10-K for the fiscal year ended March 27, 2010, and incorporated herein by reference. |
|              |   |   |
| 10.3              |   | 2000 Stock Option Plan and form of Incentive Stock Option Agreement, previously filed on September 8, 2000 as Exhibit 99.1 to Form S-8 (33-45476) and incorporated herein by reference. * |
|              |   |   |
| 10.4              |   | 2005 Equity Incentive Plan incorporated herein by reference to Attachment A of the Registrant’s Proxy Statement filed July 21, 2005. * |
|              |   |   |
| 21                |   | Significant Subsidiaries, previously filed on May 19, 2011 and incorporated herein by reference. |
|              |   |   |
| 23.1              |   | Consent of Independent Registered Public Accounting Firm, Perry-Smith LLP, previously filed on May 19, 2011 and incorporated herein by reference. |
|              |   |   |
| 31.1              |   | Certification of Chief Executive Officer under Section 302 of the Sarbanes-Oxley Act of 2002, amended July 25, 2011. |
|              |   |   |
| 31.2              |   | Certification of Chief Financial Officer under Section 302 of the Sarbanes-Oxley Act of 2002, amended July 25, 2011. |
|              |   |   |
| 32.1              |   | Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, amended July 25, 2011. |
|              |   |   |
| 32.2              |   | Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, amended July 25, 2011. |
|              |   |   |
|              |   |   |
|              | * | Management contract or compensatory plan or arrangement. |