Castleford may refer to:
- Castleford, a town in West Yorkshire, England
- Castleford Tigers, a rugby league club
- Castleford High School Technology and Sports College, a high school
- Castleford railway station
- Castleford, Idaho, in the United States
- Castleford, Ontario, Canada, a community in Horton Township
- Castleford: Horse briefly mentioned in Lord of the Rings: The Two Towers (Movie)