Otto of Brunswick
Otto of Brunswick may refer to:
- Otto [IV, Holy Roman Emperor]
- Otto I, Duke of Brunswick-Lüneburg, also called Otto the Child
- Otto the Mild, Duke of Brunswick-Lüneburg
- Otto II, Duke of Brunswick-Lüneburg, also called Otto the Strict
- Otto III, Duke of Brunswick-Lüneburg
- Otto IV, Duke of Brunswick-Lüneburg, also called Otto the Lame
- Otto V, Duke of Brunswick-Lüneburg, also called Otto the Victorious
- Otto, Duke of Brunswick-Grubenhagen, also called Otto the Tarantine
- Otto I, Duke of Brunswick-Harburg
- Otto II, Duke of Brunswick-Harburg
- Otto III, Duke of Brunswick-Harburg
- Otto II, Duke of Brunswick-Osterode
- Duke [Otto Henry of Brunswick-Harburg]
- Francis Otto, Duke of Brunswick-Lüneburg
- Otto II of Brunswick-Wolfenbüttel, Archbishop of Bremen