|French: boulevard Gouin|
Visitation Church at 1847, Gouin Blvd
|Length||50 km (30 mi)|
|Location||Island of Montreal|
Gouin Boulevard (officially in French: boulevard Gouin) is the longest street on the Island of Montreal, stretching 50 kilometres (31 mi) across the north side of the island from Senneville in the west to Pointe-aux-Trembles in the east, where it intersects with Sherbrooke Street (Quebec Route 138).
Through most of its length it parallels the Riviere des Prairies that separates Montreal from Laval (Île Jésus). The road crosses the boroughs, municipalities and neighbourhoods of Senneville, Pierrefonds, Sainte-Geneviève, Roxboro, Saraguay, Cartierville, Ahuntsic, Riviere-des-Prairies, Montréal-Nord and Pointe-aux-Trembles. It is named after Lomer Gouin, Premier of Quebec from 1905 to 1920. 
Many sections of the street feature bicycle lanes that are part of Quebec's Route Verte network. However, several sections have been criticized as dangerous, due to the presence of hydro poles in the lanes.
What is now Gouin Boulevard was first started in 1731, as part of the Chemin du Roy, the oldest highway in Canada. It first opened between 1734 and 1777, serving settlements that had started to be established at the end of the 17th century. In 1910, the portion of the Chemin du Roy on Montreal Island was renamed to "Gouin" in honour of politician Lomer Gouin (1861-1929), a premier of Quebec, by the District and County of Montreal.
Much of the boulevard was affected during the 2017 Quebec floods.
- Duchaine-Baillargeon, Gabrielle (2007-05-21). "Des pistes dangereuses" (HTML). Journal de Montreal (in French). canoe.ca. Retrieved 2008-10-21.
- (in French) Roger Lagacé (16 December 2014). "Du chemin du Roy au boulevard Gouin". Le Guide de Montréal-Nord. Journal Métro de Montréal ("Metro").
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