Diss

Diss or DISS may refer to:
 * Diameter index safety system (DISS), a medical gas connection standard
 * Diss, Norfolk, a market town in England
 * Diss railway station
 * Diss Rugby Club
 * Diss Town F.C.
 * Diss, Alberta, a place in Canada
 * Diss grass, a Mediterranean grass
 * Diss (music), a song whose primary purpose is to verbally attack someone else, usually another artist
 * Department of Internal State Security, a fictional organization from the 2009 film District 13: Ultimatum
 * Smaïl Diss (born 1976), Algerian football player
 * Dissertation