Cantwell or Cantwells may refer to:

Places

* Cantwell, Alaska, a US census-designated place * Cantwell, West Virginia * Cantwell's Court, a townland in County Kilkenny, Ireland * Cantwells Run, a stream in Ohio

Other uses

* Cantwell (surname), people with the surname ''Cantwell'' * Cantwell Fada (also known as the Long Man), an effigy of a knight on display in the ruins of a 14th-century church in Kilfane, near Thomastown in County Kilkenny, Ireland * '' Cantwell v. Connecticut'', a US Supreme Court case {{disambig