The term 'Patron Saint of Norway' refers to a group of saints who are venerated in Norway. The four solutions to the crossword are Olaf (4 letters), Olav (4 letters), Olf (3 letters), Olafii (6 letters) and Olavii (6 letters). Olaf is the most widely known of these saints, and is considered the patron saint of Norway. Olav was a king of Norway in the 11th century, and is also venerated as a saint. Olf was a bishop in the 11th century and is also venerated as a saint. Olafii and Olavii were both kings of Norway in the 12th century, and are also venerated as saints.