Odin (Woden), [57], [177-178], [180], [185]

Olaf, St., [18], [21], [76-81], [85], [94], [124], [153-154], [168-169], [210-211], [231-233]

Olaf, St., Saga of (part of Heimskringla), [152], [168], [179]

Olaf Tryggvison, [15], [16], [70-76], [113], [229-231]

Olaf Tryggvison, Saga of (part of Heimskringla), [63], [230]

Olavus Petri, [216]

Origines Islandicæ, [38], [83], [106], [182]

Oslo, [83], [95-99]

Ostero, [17]

Otté, [122], [215]