Olaf m
Scandinavian: from an Old Norse personal name composed of the elements anu ancestor + leifr heir, descendant. St Olaf, King of Norway (995–1030), aided the spread of Christianity in his kingdom. The name was introduced to Britain before the Norman Conquest, but modern use as a given name in the English-speaking world originated in America, where it was taken by recent Scandinavian immigrants.
First names dictionary. 2012.