Dow Planetarium
| Established | 1 April 1966 |
|---|---|
| Dissolved | 11 October 2011 |
| Location | 1000 Saint Jacques Street, Montreal, Quebec, Canada |
| Coordinates | 45°29′46″N 73°33′50″W / 45.4961233°N 73.5638563°W |
| Type | Planetarium |
| Public transit access | Bonaventure |
| Website | espacepourlavie |
The Dow Planetarium (later renamed the Montreal Planetarium) is a decommissioned public planetarium located at Chaboillez Square southeast of downtown Montreal, Quebec, Canada. It closed permanently in October 2011. A new facility, the Rio Tinto Alcan Planetarium, near Olympic Stadium in Montreal, opened in April 2013.