St Mary's Catholic School was a Roman Catholic secondary school located in Grimsby, Lincolnshire, England. The school closed at the end of the academic year in 2010, in preparation for its amalgamation with Matthew Humberstone School to form St Andrew's College, a joint faith school which opened in September 2010. This school was renamed Holy Family Catholic Academy, a solely a Roman Catholic school, but this closed and the site reopened as Beacon Academy in September 2017.