Dauphin (French "dolphin", plural dauphins), may refer to:
- Royal title
- Dauphin of France
- Dauphin of Auvergne; see List of rulers of Auvergne#Dauphins of Auvergne
- Dauphin of Viennois; see List of Counts of Albon and Dauphins of Viennois
- Places in Manitoba, Canada
- Dauphin, Manitoba
- Dauphin, Manitoba (rural municipality)
- Dauphin (provincial electoral district)
- Dauphin (Manitoba electoral district), a federal electoral district in Canada
- Dauphin (Manitoba riding), a provincial electoral district in Manitoba, a Canadian province
- Dauphin Regional Airport
- Dauphin railway station
- Dauphin Lake
- Other places
- Dauphin, Alpes-de-Haute-Provence, France
- Dauphin, Pennsylvania, United States
- Dauphin County, Pennsylvania, United States
- Dauphin Island, Alabama, United States
- Dauphin Quarter, Saint Lucia
- Other uses
- Dauphin (rocket)
- USS Dauphin (APA-97), a ship
- "The Dauphin", an episode of Star Trek:The Next Generation
- Eurocopter Dauphin, a helicopter series
- Dauphin, a French submarine seized by Italy during World War II to be converted into a cargo submarine
- a cheese, see Maroilles
- Le Dauphin, defunct French car manufacturer