Gambrills refers to two neighboring places in Anne Arundel County, Maryland, United States, located in the Annapolis metro area: the unincorporated community of Gambrills, and the Gambrills census-designated place (CDP). The area was named after Augustine Gambrill, a plantation owner. The CDP covers an expansive range that falls within the communities of Crofton, Waugh Chapel, and Odenton. It also borders Davidsonville, Crownsville, Millersville, and Prince George's County, Maryland.