| [X] | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|-----|--------------------------------------------------------------------------------------|

| [  ] | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|-----------|------------------------------------------------------------------------------------------|

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| Indiana                                                              |   | 82-4821705                          |
|----------------------------------------------------------------------|--------|-------------------------------------|
| (State or other jurisdiction of incorporation or organization)  |   | (I.R.S. Employer I.D. Number)  |
|                                                                 |   |                                |
| 300 North Water Street, Salem, Indiana                          |   |  47167                         |
| (Address of principal executive offices)                        |   | (Zip Code)                          |
|                                                                 |   |                                |
| Registrant's telephone number, including area code:             |   | (812) 883-2639                 |
|                                                                 |   |                                |
| Securities registered pursuant to Section 12(b) of the Act:          |   |                                |

|  Title of each class              |   |  Trading Symbol(s) |   | Name of each exchange on which registered |
|----------------------------------------|--------|-------------------------|--------|-------------------------------------------|
| Common Stock, par value $.01 per share |   | MSVB                    |   | The NASDAQ Stock Market LLC               |

| Large accelerated filer ☐ |   | Accelerated filer  ☐   |
|---------------------------------|--------|-----------------------------------|
| Non-accelerated filer ☐   |   | Smaller reporting company ☒ |
|                            |   | Emerging growth company ☒   |

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|  Exhibits: |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |
| 3.1             | Articles of Incorporation of Mid-Southern Bancorp, Inc. (1)                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| 3.2             | Bylaws of Mid-Southern Bancorp, Inc. (1)                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| 4.0             | Form of Common Stock Certificate of Mid-Southern Bancorp, Inc. (1)                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| 10.1            | Form of Mid-Southern Savings Bank, FSB Employee Stock Ownership Plan (1)                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| 10.2            | Employment Agreement by and between Mid-Southern Savings Bank, FSB and Alexander G. Babey, dated October 1, 2016, including                Amendment to Employment Agreement and First Amendment to Executive Employment Agreement, dated February 1, 2018                                                                                                                                                                                                                                           |
| 10.3            | Employment Agreement by and between Mid-Southern Savings Bank, FSB and Frank M. Benson, III (1)                                                                                                                                                                                                                                                                                                                                                                                                      |
| 10.4            | Change in Control Agreement by and between Mid-Southern Savings Bank, FSB and Erica B. Schmidt (1)                                                                                                                                                                                                                                                                                                                                                                                                        |
| 10.5            | Mid-Southern Savings Bank, FSB 2010 Equity Incentive Plan (2)                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| 14              | Code of Ethics (3)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| 21              | Subsidiaries of Registrant*                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| 23              | Consent of Independent Registered Public Accounting Firm*                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 31.1            | Certification of Chief Executive Officer Pursuant to                Section 302 of the Sarbanes-Oxley Act                                                                                                                                                                                                                                                                                                                                                                                                 |
| 31.2            | Certification of Chief Financial Officer Pursuant to                Section 302 of the Sarbanes-Oxley Act                                                                                                                                                                                                                                                                                                                                                                                                 |
| 32              | Certification of Chief Executive Officer and Chief Financial Officer Pursuant to Section 906 of the                Sarbanes-Oxley Act                                                                                                                                                                                                                                                                                                                                                                     |
| 101             | The following materials from Mid-Southern Bancorp Inc.’s Annual Report on Form 10-K for the year ended December 31, 2018, formatted on Extensible Business Reporting Language (XBRL) (a) Consolidated Balance              Sheets; (b) Consolidated Statements of Income; (c) Consolidated Statements of Comprehensive Income; (d) Consolidated Statements of Shareholders’ Equity (e) Consolidated Statements of Cash Flows; and (f) Notes to Consolidated Financial              Statements |

| * | Previously filed with the Original Form 10-K. |
|---|-----------------------------------------------|

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| Date: September 10, 2019 | MID-SOUTHERN BANCORP, INC. |
|--------------------------|----------------------------|
|                     |                       |   |
|                     |                       |   |
|                     | By:                        | /s/Alexander G. Babey |
|                     |                       | Alexander G. BabeyPresident and Chief Executive Officer   |

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| Exhibit 10.2       | Employment Agreement by and between Mid-Southern Savings Bank, FSB and Alexander G. Babey, dated October 1, 2016, including                  Amendment to Employment Agreement and First Amendment to Executive Employment Agreement, dated February 1, 2018 |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Exhibit 31.1  | Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of                    2002                                                                                                                                             |
| Exhibit 31.2       | Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                |
| Exhibit 32         | Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. 1350 as Adopted Pursuant to Section                  906 of the Sarbanes-Oxley Act of 2002                                                                             |

|  |  |
|--|--|

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