Grimsby, a character from Disney's 1989 animated film The Little Mermaid

Grimsby Town F.C., a Football League club

Great Grimsby, a United Kingdom parliamentary constituency

Grimsby, a small town in Ontario, Canada

RAF Grimsby, a World War II RAF station

Grimsby Chums, a British First World War Pals battalion

Roger Grimsby (1928-1995), a former American news anchor and actor

Grimsby Borough F.C., a Central Midlands Football League club

You may also be looking for Grimsay (disambiguation)

Little Grimsby, a village near Louth, Lincolnshire

Grimsby, a UK seaport on the Humber estuary in North East Lincolnshire