Renfrew is a town on the Bonnechere River in Renfrew County, Ontario, Canada. Located one hour west of Ottawa in Eastern Ontario, Renfrew is the fourth largest town in the county after Petawawa, Pembroke and Arnprior. The town is a small transportation hub connecting Highway 60 and Highway 132 with the Trans-Canada Highway. Renfrew is also known historically for its role in the formation of the National Hockey League.