VAST is an American industrial rock band based in Seattle, Washington. The acronym VAST stands for Visual Audio Sensory Theater and is the main creation of singer/songwriter and multi-instrumentalist Jon Crosby. The band is signed to 2blossoms, an independent record company created by Crosby himself.

VAST's sound is identifiable as ambient electro-rock with considerable industrial and acoustic influences, usually made with Crosby's traditional acoustic guitar, electronic instruments and processing, drum-driven tracks, and heavy bass. Vocally similarities range from classic rock to post-grunge. In recent years, however, VAST's sound has been more identifiable with acoustic rock in releases such as April and Me and You.