A trapper is a person who uses devices to catch animals.

Trapper may also refer to:

Places Trapper Lake (disambiguation), several lakes Trapper Mountain, Washington, United States Trapper Peak (Canada), a mountain in the Waputik Range, on the border between Alberta and British Columbia Trapper Peak (Montana), United States, a mountain in the Selway-Bitterroot Wilderness Area

Fictional characters Trapper (Dungeons & Dragons), monster type found in some fantasy role-playing games Trapper John McIntyre, a character in the M*A*S*H franchise Trapper, a character in The Son of Bigfoot and Bigfoot Family

Sports Trapper (ice hockey), goaltending equipment Tilburg Trappers, a Dutch hockey team Edmonton Trappers, a Canadian former minor league baseball team Fitchburg Trappers, a defunct American minor league ice hockey team Salt Lake City Trappers, a short-lived American former minor league baseball team Trapper, the mascot for Fort Vancouver High School, Vancouver, Washington

Other uses Chris Trapper (born 1971), American songwriter Trapper Nelson (1909–1968), American trapper, hunter and founder of a zoo in Florida Trapper Schoepp, American singer-songwriter Coal trapper, a person who operates a trap door in a coal mine Trapper hat, a fur hat similar to an ushanka Trapper, a slang term for a person who partakes in the illegal drug trade Trapper, a pattern of pocketknife Trapper, file folder storable in a Trapper Keeper binder

See also Albert Johnson (criminal) (died 1932), Canadian fugitive nicknamed the "Mad Trapper"