Oshawa's 2016 population 159,458; is a city in Ontario, Canada, on the Lake Ontario shoreline. It lies in Southern Ontario, approximately 60 km (37 mi) east of Downtown Toronto. It is commonly viewed as the eastern anchor of the Greater Toronto Area and of the Golden Horseshoe. It is the largest municipality in the Regional Municipality of Durham. The name Oshawa originates from the Ojibwa term aaz haway, meaning "the crossing place" or just "a cross".