Grimsby Town Football Club is a professional association football club based in Cleethorpes, North East Lincolnshire, England, that competes in EFL League Two, the fourth level of the English football league system.

Cleethorpes is a seaside town on the estuary of the Humber in North East Lincolnshire, Lincolnshire, England with a population of 38,372 in 2020. It has been permanently occupied since the 6th century, with fishing as its original industry, then developing into a resort in the 19th century. Before becoming a unified town, Cleethorpes was made up of the three small villages of Itterby, Oole and Thrunscoe.