Resident Audio is a U.S. audio hardware company based in Hauppauge, New York, that makes recording gear aimed at home and project studio musicians. The brand was formed by a team of audio professionals with prior experience designing pro audio hardware and software, and it launched with a focus on Thunderbolt-based interfaces at a time when the format was still emerging.

The company is best known for the T4, a four-channel Thunderbolt audio interface that operates without external power and offers four combo XLR/TRS inputs, and the smaller T2, a bus-powered 2x2 Thunderbolt interface with 24-bit/96kHz conversion. Beyond interfaces, Resident Audio's catalog has included the M-Series and NF-Series studio monitors, headphones, and a portable microphone stick for mobile recording.

Resident Audio occupies a niche corner of the recording-interface market, with its Thunderbolt-first approach distinguishing it from the broader USB-dominated field. Its products have been carried by mainstream retailers including Sweetwater, Musician's Friend, B&H Photo, and Reverb.

Resident Audio has 5 products cataloged on Equipboard, including Audio Interfaces, Active & Passive Monitors, and Headphones & In-Ear Monitors. Their gear is featured by 1 artist, with the strongest followings in Electronic, Rock, and Pop. Notable users include M O R Δ L E S.