This Busy Monster was an American indie rock band formed in Seattle, Washington in the early 1990s. The band was composed of Christopher Possanza (vocals, guitar), Josh Rosenfeld (bass guitar), Jason Avinger (guitar, vocals) and Barrett Wilke (drums).

Known for their unconventional song structures, and eclectic instrumentation (including the use of a clarinet in many tracks), the band released three full-length albums, Like Icicles, The Curious Sofa and Fireworks, and released many EPs.

This Busy Monster are also notable for forming the record label Barsuk Records, named after Avinger and Possanza's dog, which can be heard barking in the track "Song 69". Initially created in 1994 to release the band's material during their success in the early 1990s, Barsuk Records later became a very successful label in its own right, signing and releasing material from numerous local and internationally-known artists.