I. F. Clarke (Ignatius Frederic "Ian" Clarke) (1918–2009), British bibliographer and literary scholar; winner of the Pilgrim Award
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Ian James Clarke (1931–1997), New Zealand rugby player, farmer and rugby administrator
Ian Fleming | Arthur C. Clarke | Ian McKellen | Ian Smith | Ian Rankin | Ian Brown | Ian Botham | Ian Thorpe | Ian McEwan | Ian Paisley | Cam Clarke | Ron Clarke | Ian Kershaw | Ian Bremmer | Ian Roberts | Ian Ogilvy | Ian McShane | Ian MacKaye | Ian Holm | Ian Carmichael | Warren Clarke | Kenneth Clarke | Ian Richardson | Ian La Frenais | Ian Gillan | Ian Dury | Ian Bannen | Clarke Carlisle | Shirley Clarke | Ronald J. Clarke |