GCT Semiconductor Holding, Inc. 2290 North 1st Street, Suite 201 San Jose, California 95131 (408) 434-6040
June 4, 2025 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attention: Ms. Jennifer Angelini and Ms. Erin Purnell
	Re: GCT Semiconductor Holding, Inc. Amendment to Registration Statement on Form S-3 Filed May 13, 2025 File No. 333-286704

Ladies and Gentlemen:

In accordance with Rule 461 under the Securities Act of 1933, as amended, GCT Semiconductor Holding, Inc. (the “Registrant”) respectfully requests that the effective date of the above-referenced Registration Statement on Form S-3 be accelerated so that the same will become effective at 4:00 PM EST on June 6, 2025, or as soon thereafter as is practicable.

The Registrant hereby authorizes Albert Lung and David Bionghi, of Morgan, Lewis & Bockius LLP to orally modify or withdraw this request for acceleration.

Please contact Albert Lung at (650) 843-7263 or albert.lung@morganlewis.com or David Bionghi at (212) 309-6138 or david.bionghi@morganlewis.com with any questions you may have concerning this request, and please notify them when this request for acceleration has been granted.

Very truly yours,

GCT Semiconductor Holding, Inc.

By: /s/ John Schlaefer

Name: John Schlaefer

Title: Chief Executive Officer