Creasy may refer to:
- Persons
- Edward Shepherd Creasy (1812–1878), English historian
- George Creasy (1895–1972), Royal Navy officer
- Gerald Creasy (1897–1983), British colonial administrator
- Kenneth Creasy (1932–1992), American politician
- Robert Creasy (1939–2005), American computer scientist
- Sara Creasy, Australian author
- Stella Creasy (born 1977), British Labour Co-operative politician
- Wynn Creasy (born 1957), American artist
- Others
- Creasy Airport, in unincorporated Galveston County, Texas, United States