Gag is a device designed to prevent speech.

Gag or the acronym GAG may also refer to:

Humor

Gag cartoon, a one-panel comic that is usually intended to have ridiculous happenings

• Yonkoma, a four panel form of Japanese gag comic strip

• Gag gift, an informal term for a practical joke device

• Visual gag, a comedian's term for a joke, a comedic sketch or routine, or the visible effect of a magical illusion

• Running gag, a literary device that repeats in a certain work of literature

Legal

• Gag order, a writ or court order taken out with an intent to prevent information or comment from being made public

• Gag rule, a part of court proceedings and congressional proceedings

Physical objects

• Gag (BDSM), used in BDSM activities

• Gag bit, a type of bit used for strong horses

Gag (medical device), a device used by dentists, surgeons and veterinarians to hold the patient's mouth open

• Jennings gag, a form of medical gag

• Whitehead gag, a form of medical gag

• Hallam gag, a form of medical gag

• Wind gag, a woolly windscreen put round a microphone to stop it from picking up wind noise

Biology

• Gag reflex, the feeling of choking or accompanying involuntary muscular contractions in the throat

• Glycosaminoglycan (GAG), a polysaccharide that is part of connective tissue

• Group-specific antigen, the genetic material that codes for the core structural proteins of a retrovirus

• Gag grouper, a species of fish

• GAG, one of two codons for glutamic acid

People

• Anton Gag (1859–1908), painter

• Andrei Gag (born 1991), Romanian athlete

• Wanda Gág (1893–1946), children's book writer and illustrator

Music

• Gestört aber GeiL, a German DJ duo from Erfurt

• Gag (album), a 1984 album by Fad Gadget

• Gagged (EP), a 2015 EP by Violet Chachki

• "Gag" (song), a 2013 single by Gen Hoshino

• "G.A.G.", a 2024 song by Stand Atlantic from Was Here

Other uses

• gag, the ISO 639 code for the Gagauz language

• Gag Island, one of the Raja Ampat Islands in Indonesia

• Gage Airport in Gage, Oklahoma (IATA airport code GAG)

• Gays Against Groomers, an American political organization

• The Go-Ahead Group, a British transport company

• Górniczy Agregat Gaśniczy (GAG), a jet engine unit used in mine fires

• Grenfell Action Group, a residents' association at Grenfell Tower, London which caught fire

• Gustav Adolf Grammar School, a school in Estonia

• Grow a Garden, 2025 Roblox video game