Checker may refer to:
- Checker Motors Corporation, an automotive industry subcontractor that was once the builder of the Checker taxicab and the Superba and Marathon automobiles
- Checker Taxi, a livery company (taxi service) founded by Morris Markin, that used Checker Taxi Cabs
- Checker Records, a record label
- the action that produces checkering, a surface applied to wooden gunstocks to provide a non-slip grip (see Gunsmith)
- Chubby Checker, an American singer-songwriter best known for popularising "The Twist"