FLEA Microphones is a boutique microphone manufacturer based in Považská Bystrica, Slovakia, founded in 2002. The name is derived from "Flexible Audio," and the company was established by Jaroslav Kotrla, Miloš Rojko, and Ivan Hako — a team of musicians and technicians focused on building painstaking reproductions of iconic vintage tube microphones.

The product line centers on hand-built replicas of mid-century studio classics, including the FLEA 47 and FLEA 48 (inspired by the Neumann U 47/U 48), the FLEA 49 and FLEA 50 (after the Neumann M 49/M 50), the FLEA 12 (a take on the AKG C12), and the FLEA M 251 and M 251 FET (modeled on the Telefunken ELA M 251). The lineup also includes the multi-pattern FLEA 249 and FLEA 250, along with a "Next" series (FLEA 47 Next, FLEA 47 Superfet, FLEA 48 Superfet) and individually available components such as the FLEA CK12 capsule.

Parts are manufactured in Slovakia to original vintage specifications, with capsules skinned in Germany by mic-repair specialist Siegfried Thiersch. The company occupies a niche favored by mastering engineers, classical and jazz recordists, and high-end tracking studios seeking the sonic character of unobtainable vintage tube mics, and its microphones have been used on projects ranging from film scores to Grammy-nominated jazz recordings.

FLEA Microphones has 11 products cataloged on Equipboard, including Condenser Microphones. Their gear is featured by 12 artists, with the strongest followings in Rock, Electronic, and Pop. Notable users include Damon Albarn, Yannis Philippakis, and Ollie Judge.