KPST

KPST may refer to:
 * KPST, an early call sign for the Idaho radio station KACH
 * KPST, a call sign used 2009–2010 for KFFV, a TV station from Seattle, Washington
 * KPST-TV, a call sign used 1986–2002 for KFSF-DT, a TV station from California
 * KPST-FM, a radio station from California
 * Katy Perry's Sweet Treats, a stuff pack for The Sims 3 video game