Sanken Microphone Co., Ltd. is a Japanese microphone manufacturer based in Tokyo, with roots dating back to the Takeuchi Factory founded in the 1920s before being renamed Sanken in 1959. The company is known for precision-engineered condenser microphones for film, broadcast, live sound, and music recording, and has been run by successive generations of the Takeuchi family.

Sanken's catalog spans shotgun microphones (the CS-1e, CS-2, CS-3e, CSS-50 surround, and CS-M1), lavaliers (the widely used COS-11D and COS-22), and a line of studio mics marketed as Sanken Chromatic, which includes the CO-100K, CUX-100K, CU-44X MK II, CU-51, and CU-55. The company introduced titanium-diaphragm technology in its CMS-2 in the mid-1970s, and its COS-11 lavalier design was recognized with an Academy Scientific and Engineering Award.

In North America, South America, and Canada, Sanken is distributed by Los Angeles–based plus24. The brand has a following among film sound mixers for its lavs and shotguns, and engineers including Frank Filipetti, Chuck Ainlay, and Bruce Botnick have cited its studio mics in their work.

Sanken has 5 products cataloged on Equipboard, including Condenser Microphones and Dynamic Microphones. Their gear is featured by 3 artists, with the strongest followings in Rock and Electronic. Notable users include Josh Homme, Jonathan Davis, and Chris Watson.