Croasdale is a surname of English origin. It is a habitational name, named after an unidentified place, possibly Crowsdale Wood in North Yorkshire or Crossdale in Cumbria. The earliest record of the name occurs is of Johannes de Crosdale in 1379. Possible variations of the surname include: Croasdell, Croisdale, Crossdale, Croasdaile, Crosdill, Croisdall, Crosdil, Crosedale, Crowsdale, Croysdill, Crossdil, Crousdale, Croasdoll, Croosdale, Croysdale, Crosdale, Crossdell, and Crosdall.
- "Croasdale Name Meaning and History". Ancestry.com. Retrieved 11 December 2008.
- Reaney, Percy Hilde; Wilson, Richard Middlewood (2006). A Dictionary of English Surnames (PDF)ISBN 0-203-99355-1. (3rd ed.). London: Routledge. pp. 803–804.
- "Yorkshire: Subsidy Rolls (Poll Tax) for the year 1379". GENUKI (www.genuki.org). Retrieved 14 December 2008.
- "Croasdale One-Name Study". Guild of One-Name Studies. Retrieved 11 December 2008.