No nicknames, but several spelling variants if Ian by itself isn’t awesome enough for you.
Famous people named Ian:
Actors Ian McKellen, Ian Somerhalder, Ian Ziering, Ian Harding, and Ian Dale; novelists Ian McEwan, Ian Fleming, and Ian Rankin; fashion designer Ian Murray.
Ian reached #67 on the list in 1995 and then again ten years later in 2005; for the past few years it’s been holding steady in the 70s.
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