September 25, 2018
U.S. Securities and Exchange Commission
Division of Corporate Finance
100 F Street NE
Washington, DC 20549
Attn: Caleb French
| Re: | MoSys, Inc. |
Ladies and Gentlemen:
Pursuant to Rule 461 promulgated under the Securities Act of 1933, as amended, MoSys, Inc. (the “Registrant”) hereby requests that the effective date for the above-referenced Registration Statement on Form S-1 be accelerated so that it will be declared effective at 4:30 p.m., Eastern Daylight Time, on Thursday, September 27, 2018, or as soon as thereafter as practicable.
| Very Truly Yours, | ||||
| MoSys, Inc. | ||||
| By: | /s/ James W. Sullivan | |||
| Name: | James W. Sullivan | |||
| Title: | Vice President of Finance and | |||
| Chief Financial Officer | ||||
MoSys, Inc.
2309 Bering Drive, San Jose, CA 95054 Tel: 408.418.7500 www.mosys.com