Olaf II Haraldsson (circa 995–1030), reigned 1016–30; canonized as St Olaf for his attempts to spread Christianity in his kingdom. He is the patron saint of Norway. Feast day, 29 July.
Olaf III Haraldsson (d.1093), reigned 1066–93.
Olaf IV Haakonson (1370–87), reigned 1380-7.
Olaf V (1903–91), reigned 1957–91; full name Olaf Alexander Edmund Christian Frederik.
