Gracious
Iain is the traditional Scottish Gaelic form of John. It shares the same etymological roots as the English Ian, but retains the double-i spelling common in Scotland.
Less common today
Iain isn't in the latest US Top 1000. It last peaked at #1,184 in 2003.
Scottish author of The Wasp Factory and the Culture series
Scottish actor known for playing Jorah Mormont
Scottish actor known for Agents of S.H.I.E.L.D.
English film director of The Wings of the Dove
US births per 5-year period, 1990βpresent (SSA data).