Ratisbonne and Ratisbon are the French and English alternative names for Regensburg, a city in south-east Germany.
Ratisbonne and Ratisbon may also refer to:
- Battle of Ratisbon (1809), also called the Battle of Regensburg, a battle fought during the Napoleonic Wars
- Ratisbonne Monastery, a monastery in Jerusalem
- Treaty of Ratisbonne (1630), also known as Peace Treaty of Regensburg, a peace treaty following the War of the Mantuan Succession