Whelen may refer to:
- Christopher Whelen (1927–1993), English composer, conductor and playwright
- Frederick Whelen (1867-1955), theatre director
- Townsend Whelen (1877–1961), American Colonel and rifleman
- .35 Whelen, rifle cartridge
- .375 Whelen, rifle cartridge
- .400 Whelen, rifle cartridge
- Whelen Engineering Company, manufactures audio and visual warning equipment, sponsors a number of NASCAR auto racing events
- Whelen Euro Series, NASCAR Whelen Euro Series
- Whelen All-American Series
- Whelen Modified, NASCAR Whelen Modified Tour
- Whelen Southern Modified Tour
Other uses
edit- Camp Whelen, former summer camp in New Jersey; on the property formerly known as Harvey Cedars Hotel and now Harvey Cedars Bible Conference
- Whelen Springs, Arkansas