KAOS (89.3 FM) is a hybrid college/community radio station licensed to the Evergreen State College in Olympia, Washington.

[5] The station has been a mainstay in Olympia's local music scene, including a famous early appearance by Skid Row (Nirvana) on May 6, 1987 (their fourth public appearance and first-ever radio broadcast) and a Kurt Cobain solo acoustic performance on September 25, 1990 (both included on the Nirvana box set With the Lights Out).

KAOS currently broadcasts several syndicated public affairs programs from Pacifica Radio, including Amy Goodman's Democracy Now!

KAOS also features a wide variety of music, including world music, jazz, blues, metal, folk, experimental, garage, psychedelic, electronic, surf, alt-country, prog, free jazz, indie rock, bluegrass, dance, dub, reggae, hip hop, Latino, roots rock, R&B, and more.

[3] KAOS was also the call sign of an unlicensed AM radio station operating in Huntington Beach, California, during the late 1960s on 880 kHz.