Olaf Tryggvason was King of Norway from 995 to 1000. He was the son of Tryggvi Olafsson, king of Viken, and, according to later sagas, the great-grandson of Harald Fairhair, first King of Norway. He is numbered as Olaf I.
Only known type of coin of Olaf Tryggvason, in four known specimens. Imitation of the Crux-type coin of Æthelred the Unready.