Ultan () is an Irish male given name derived from Ulster.
People with the given name Saint Ultan, Irish monk and saint Ultan of Ardbraccan, Irish abbot and saint Ultan Cooke, Irish chef Ultan Conlon, Irish singer-songwriter Ultan Dillane, Irish professional rugby player Ultán Heenan-Roberts, Irish Footballer
People with the surname Lloyd Ultan (composer) Lloyd Ultan (historian)
See also Owltan, a village in Ardabil Province, Iran