Grimsby is a UK seaport on the Humber Estuary in North East Lincolnshire.
Grimsby may also refer to:
Places
- Grimsby, Illinois, an unincorporated community in the United States
- Grimsby, Ontario, a town in Ontario, Canada
- Little Grimsby, village near Louth, Lincolnshire, England, part of Brackenborough with Little Grimsby parish
- Great Grimsby (UK Parliament constituency), a United Kingdom parliamentary constituency
- New Grimsby and Old Grimsby, villages on the island of Tresco
Sport
- Grimsby Town F.C., a Football League club
- Grimsby Borough F.C., a Central Midlands Football League club
Military
- Grimsby Chums, a British First World War Pals battalion
- RAF Grimsby, a World War II RAF station
- Grimsby class sloop, a World War II class of warships
Other uses
- "Grimsby" (song), a song by Elton John from his 1974 album Caribou
- Grimsby (film), a 2016 action-comedy film starring Sacha Baron Cohen
- Roger Grimsby (1928–1995), a former American news anchor and actor
- Grimsby, a character from the 1970 Rankin/Bass Christmas special Santa Claus Is Coming to Town
- Grimsby, a character from Disney's 1989 animated film The Little Mermaid