Rideau
Rideau is
- Part of the name of various geographical names in and around Ottawa, Canada:
- Rideau River , a river
- Rideau Canal , a canal
- Rideau Falls , a waterfall
- Rideau Lakes , a locality
- Rideau Valley , a valley
- Part of the name of a French municipality, see Azay-le-Rideau
- Surname of:
- Émile Rideau (1899–1981), French Jesuit and author
- Stéphane Rideau (* 1976), French actor
