Sid Hatfield (1893–1921) was Police Chief of Matewan, West Virginia during the Battle of Matewan, a shootout that followed a series of evictions carried out by detectives from the Baldwin-Felts agency. Hatfield had intervened on behalf of the evictees, all miners. While Hatfield was held in high regard by the United Mine Workers of America for his actions, the Baldwin-Felts agency targeted Hatfield.