Tonix Pharmaceuticals Holding Corp.

509 Madison Avenue, Suite 1608

New York, New York 10022

February 6, 2020

VIA EDGAR

United States Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, D.C. 20549

Registration Statement on Form S-1 (File No. 333-235976)

Ladies and Gentlemen:

In accordance with Rule 461 under the Securities Act of 1933, as amended, Tonix Pharmaceuticals Holding Corp. (the “Company”) hereby requests that the above-referenced Registration Statement (the “Registration Statement”) be declared effective by the Securities and Exchange Commission (the “Commission”) at 5:15 p.m., Eastern Standard Time, on February 6, 2020, or as soon as practicable thereafter.

Please call Irina Ishak of Lowenstein Sandler LLP at (973) 422-6406 to confirm the effectiveness of the Registration Statement or with any questions.

[Signature page follows.]

U.S. Securities and Exchange Commission

February 6, 2020

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