Blocker

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