Quebec Route 1
Route 1 was a previous number used for a major highway in the Canadian province of Quebec. The highway stretched from Montreal, through the Eastern Townships and the city of Sherbrooke, to Quebec City. Route 1 was approximately long.
In the mid-1970s, as part of Quebec's renumbering scheme, Route 1 was replaced by the following routes:
| Route | Length | Length | From | To | Notes |
| Montréal | Montréal-Sud | Crosses the Jacques Cartier Bridge; cosigned with former Route 5. | - | ||
| Montréal-Sud | Longueuil | Cosigned with former Route 3. | - | ||
| Chambly Road | Longueuil | Saint-Hubert | No longer carries a route number. | - | |
| Saint-Hubert | Vallée-Jonction | - | |||
| Vallée-Jonction | Saint-Maxime | - | |||
| Saint-Maxime | Saint-Étienne-de-Lauzon | - | |||
| Saint-Étienne-de-Lauzon | Lévis | - | |||
| Lévis | Quebec City | Crosses the Quebec Bridge. | - |