Delco may refer to:
Places Delaware County, Pennsylvania Delaware County, Ohio Delaware County, Iowa Delta County, Colorado Delta County, Michigan Delco, North Carolina
Companies ACDelco Delco Electronics Delco ignition system Sierra Leone Development Company
Media Delco Proper, television show
Linguistics Delco accent, a form of the Philadelphia or Delaware Valley accent, named for Delaware County.
People with the surname Wilhelmina Ruth Delco (born 1929), American politician