Little rock or descendant of Cathalán
Callin is often considered a variant of the Irish name Callan, derived from the Gaelic 'Cathalán', meaning 'little battle'. It may also be linked to the Scottish surname MacAllin, meaning 'son of Allen', which relates to 'little rock'.
Less common today
Callin isn't in the latest US Top 1000. It last peaked at #5,909 in 2010.
US births per 5-year period, 1990–present (SSA data).
