Blocker may also refer to: Computing Ad blocker, software for removing or altering online advertising Microphone blocker, a connector used to trick feature phones to disconnect the microphone Medicine Antiandrogens, also known as testosterone blockers, a class of drugs that suppress the actions of androgens Receptor antagonist, sometimes called a blocker, in medicine a type of receptor ligand or drug that blocks or dampens a biological response Sports Blocker (cricket), slang for a defensive-minded batsman in cricket Blocker (ice hockey) Blocker, a position in roller derby Blocker, a position in volleyball Blocker (beach volleyball), a position in beach volleyball Steve Roach (rugby league) (born 1962), Australian rugby league footballer nicknamed "Blocker" Fiction Blocker (G.I. Joe), a fictional character in the G.I. Joe universe Blockers (film), a 2018 film Other uses Blocker (surname) Blocker, Oklahoma, an unincorporated community Blocker corporation, a type of C Corporation in the US See also Block (disambiguation)