Sunday League Grimsby Division 3

The Sunday League Grimsby Division 3 is a football league for amateur teams in the Grimsby, Cleethorpes and District area. It is one of four divisions in the Grimsby & Cleethorpes Sunday Football League, and is currently contested by 12 teams.

The league was founded in 1972, and has been played every season since then. The current champions are Old Clee Sewell 1st, who won the title in the 2022-23 season.

The league is affiliated to the Football Association, and all teams must be registered with the FA. The league also has a charter standard status, which means that it meets certain standards set by the FA.