Otto of Montferrat
Appearance
Otto of Montferrat may refer to:
- Otto I, Marquis of Montferrat (r. 991)
- Otto II, Marquis of Montferrat (r. 1042–1084)
- Otto III, Marquis of Montferrat, known as Secondotto (r. 1372–1378)
- Otto of Tonengo, cardinal (1227–1250)