St. Olav, also known as St. Olaf, was a Norwegian king who lived in the 11th century and played a significant role in the spread of Christianity in Scandinavia. The name St. Olav has many synonyms and variations, primarily due to differences in language and culture. In Norwegian, the name is often spelled Olav or Olaf, while in other European languages such as English, it is stylized as Olaus or Olavus. Additionally, some cultures have their own variations, such as the Swedish name Olof or the Icelandic name Ólafur. These synonyms are important to be aware of when studying history or literature related to St. Olav.