List of Famous people named Ioan

Ioan Gruffudd is a Welsh actor. He first came to public attention as Fifth Officer Harold Lowe in Titanic (1997), and then for his portrayal of Horatio Hornblower in the Hornblower series of television films (1998–2003). Subsequent roles have included Lancelot in King Arthur (2004), Reed Richards/Mister Fantastic in Fantastic 4 (2005) and its sequel (2007), William Wilberforce in Amazing Grace (2006), and Tony Blair in W. (2008).

Ioan Holender is a Romanian born Austrian opera baritone and administrator.

Ioan Ovidiu Sabău is a Romanian retired professional football midfielder and manager.

Ioan Mackenzie James FRS is a British mathematician working in the field of topology particularly in homotopy theory.

Ioan Andone is a Romanian football coach and former player. He last managed Dinamo Bucharest.

Ioan Rus is a Romanian politician.

Ioan Robu is a Romanian prelate of the Roman Catholic Church. He was Archbishop of Bucharest from 1990 to 2019.