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| As filed with the Securities and Exchange Commission on November 6, 2015                                                                                                                                                                                                                                                                                                           |
|                                                                                                                                                                                                                                                                                                                                                                                    |   |   |   |   | Registration No. 333 _______ |
| UNITED STATES SECURITIES AND EXCHANGE COMMISSION                                                                                                                                                                                                                                                                                                                                        |
| Washington, D.C. 20549                                                                                                                                                                                                                                                                                                                                                                  |
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| FORM S‐8                                                                                                                                                                                                                                                                                                                                                                          |
| REGISTRATION STATEMENT                                                                                                                                                                                                                                                                                                                                                                  |
| UnderThe Securities Act of 1933                                                                                                                                                                                                                                                                                                                                                         |
|                                                                                                                                                                                                                                                                                                                                                                                    |
| HARMONIC INC.                                                                                                                                                                                                                                                                                                                                                                           |
| (Exact name of Registrant as specified in its charter)                                                                                                                                                                                                                                                                                                                                  |
|                                                                                                                                                                                                                                                                                                                                                                                    |
| Delaware                                                                                                                                                                                                                                                                                                                                                                                |   | 77-0201147 |
| (State or other jurisdiction of incorporation or organization)                                                                                                                                                                                                                                                                                                                          |   | (I.R.S. Employer Identification Number) |
|                                                                                                                                                                                                                                                                                                                                                                                    |
| 4300 North First StreetSan Jose, California 95134                                                                                                                                                                                                                                                                                                                                       |
| (Address, including zip code, of principal executive offices)                                                                                                                                                                                                                                                                                                                           |
|                                                                                                                                                                                                                                                                                                                                                                                    |   |
|                                                                                                                                                                                                                                                                                                                                                                                    |
| 2002 Director Stock Plan                                                                                                                                                                                                                                                                                                                                                                |
| (Full title of the plan)                                                                                                                                                                                                                                                                                                                                                                |
|                                                                                                                                                                                                                                                                                                                                                                                    |
| Timothy C. ChuVice President, General Counsel and SecretaryHarmonic Inc.4300 North First StreetSan Jose, California 95134(408) 542-2500(Name, address and telephone number, including area code, of agent for service)                                                                                                                                                                  |
|                                                                                                                                                                                                                                                                                                                                                                                    |
| Copy to:                                                                                                                                                                                                                                                                                                                                                                                |
| Robert G. DayWilson Sonsini Goodrich & RosatiProfessional Corporation650 Page Mill RoadPalo Alto, California 94304(650) 493-9300                                                                                                                                                                                                                                                    |
|                                                                                                                                                                                                                                                                                                                                                                                    |
| Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.  (Check one): Yes o    No o |
| Large accelerated filer   o                                                                                                                                                                                                                                                                                                                                                             |   |   |   | Accelerated filer | x |
| Non-accelerated filer    o (Do not check if a smaller reporting company)                                                                                                                                                                                                                                                                                            | Smaller reporting company | o |

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|                                                                                                             |
|                                                                                                             |   |   |   |   |   |   | Proposed Maximum |   |   |   |   |   |   |
|                                                                                                             |   | Amount to be |   |   | Offering Price Per |   |   | Proposed Maximum |   |   | Amount of |
| Title of Securities to be Registered                                                                             |   | Registered(1) |   |   | Share(2) |   |   | Aggregate Offering Price |   |   | Registration Fee |
| Common Stock (par value $0.001 per share) reserved for issuance under the Harmonic Inc. 2002 Director Stock Plan |   |   | 350,000 |   |   |   | $ | 5.8875 |  |   |   |   | $ | 2,060,625 |  |   |   |   | $ | 207.50 |  |   |
|                                                                                                             |

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| (1) | Pursuant to Rule 416(a) of the Securities Act of 1933, as amended (the “Securities Act”), this registration statement shall also cover any additional shares of the Registrant’s common stock that become issuable under the 2002 Director Stock Plan by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without receipt of consideration that increases the number of the Registrant’s outstanding shares of common stock. |

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| (2) | Estimated in accordance with Rules 457(c) and (h) under the Securities Act solely for the purpose of calculating the registration fee on the basis of $5.8875 per share, which represents the average of the high and low sale prices of the Registrant’s common stock as reported on the NASDAQ Global Select Market on November 4, 2015. |

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|     |                                                                                                                                                                                                                                                                               |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | The Registrant’s Annual Report on Form 10-K (File No. 000-25826) for its fiscal year ended December 31, 2014, filed with the Commission on March 2, 2015 pursuant to Section 13(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”); |

|     |                                                                                                                                                                                                                                                                                                 |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | All other reports filed pursuant to Section 13(a) or 15(d) of the Exchange Act since the end of the fiscal year covered by the Registrant’s Annual Report referred to in (1) above (except to the extent that information therein is furnished to and not filed with the Commission); and |

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| (3) | The description of the Registrant’s Common Stock contained in the Company’s Registration Statement on Form 8-A dated April 6, 1995, pursuant to Section 12(b) of the Exchange Act, including any amendment or report filed for the purpose of updating such description. |

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|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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| • | The Registrant shall indemnify its directors and officers for serving the Registrant in those capacities or for serving other business enterprises at the Registrant’s request, to the fullest extent permitted by Delaware law. Delaware law provides that a corporation may indemnify such person if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of the Registrant and, with respect to any criminal proceeding, had no reasonable cause to believe such person’s conduct was unlawful. |

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| • | The Registrant may, in its discretion, indemnify employees and agents in those circumstances where indemnification is permitted by applicable law. |

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| • | The Registrant is required to advance expenses, as incurred, to its directors and officers in connection with defending a proceeding, except that such director or officer shall undertake to repay such advances if it is ultimately determined that such person is not entitled to indemnification. |

|         |                                                                                                                                                                                                                                                                                                           |
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| • | The Registrant will not be obligated pursuant to the amended and restated bylaws to indemnify a person with respect to proceedings initiated by that person, except with respect to proceedings authorized by the Registrant’s board of directors or brought to enforce a right to indemnification. |

|         |                                                                                                                                                                                                                                                                                                                  |
|---------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | The rights conferred in the amended and restated certificate of incorporation and amended and restated bylaws are not exclusive, and the Registrant is authorized to enter into indemnification agreements with its directors, officers, employees and agents and to obtain insurance to indemnify such persons. |

|         |                                                                                                                                                         |
|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | The Registrant may not retroactively amend the bylaw provisions to reduce its indemnification obligations to directors, officers, employees and agents. |

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|     |                                                                                                                                |
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| (1) | To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement: |

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| (i) | To include any prospectus required by Section 10(a)(3) of the Securities Act; |

|      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
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| (ii) | To reflect in the prospectus any facts or events arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective Registration Statement; and |

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|-------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (iii) | To include any material information with respect to the plan of distribution not previously disclosed in the Registration Statement or any material change to such information in this Registration Statement. |

|     |                                                                                                                                                                                                                                                                                                                                   |
|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. |

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| (3) | To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering. |

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|               |
|---------------|
|               |  |
| HARMONIC INC. |
| By:           | /s/ Patrick J. Harshman |
|          | Patrick J. Harshman |
|          | President & Chief Executive Officer |

|                                                                      |
|----------------------------------------------------------------------|
|                                                                      |  |  |
| Signature                                                            | Title | Date |
| /s/ Patrick J. Harshman    (Patrick J. Harshman) | Chief Executive Officer (Principal Executive Officer) | November 6, 2015 |
| /s/ Harold Covert    (Harold Covert)             | Chief Financial Officer (Principal Financial and Accounting Officer) | November 6, 2015 |
| /s/ Patrick Gallagher    (Patrick Gallagher)     | Chairman of the Board | November 6, 2015 |
| /s/ E. Floyd Kvamme    (E. Floyd Kvamme)         | Director | November 6, 2015 |
| /s/ Mitzi Reaugh    (Mitzi Reaugh)               | Director | November 6, 2015 |
| /s/ William Reddersen    (William Reddersen)     | Director | November 6, 2015 |
| /s/ Susan G. Swenson    (Susan G. Swenson)       | Director | November 6, 2015 |
| /s/ Nikos Thedosopoulos    (Nikos Theodospoulos) | Director | November 6, 2015 |

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|                |
|----------------|
|                |  |
| Exhibit Number | Description of Exhibit |
| 5.1            | Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation. |
| 10.1           | Harmonic Inc. 2002 Director Stock Plan, as amended and restated effective as of June 29, 2015. |
| 23.1           | Consent of PricewaterhouseCoopers LLP, independent registered public accounting firm. |
| 23.2           | Consent of Wilson Sonsini Goodrich & Rosati, Professional Corporation (contained in Exhibit 5.1 hereto). |
| 24.1           | Power of Attorney (contained on signature page hereto). |