Riggin is an Anglicized form of the Irish surname Ó Riagáin ("son of Riagán") derived from the Irish personal name Riagán, which means "little king". Notable people with the surname include: Aileen Riggin (1906–2002), American Olympic swimmer and diver Dennis Riggin (1936–2016), Canadian ice hockey player Pat Riggin (born 1959), Canadian ice hockey player
See also Riggins (disambiguation) Riggin o Fife, an upland area in Scotland