Vassar is a community located in southeastern Manitoba.
It is located in the Rural Municipality of Piney, approximately 5 km (3.1 mi) north of the Canada–United States border with Minnesota.
Vassar was named after Sir William Mackenzie's (a key figure in Canada’s railway expansion) sister-in-law, Rosanna (Rose) Vassar, who had married Sir William's brother, Alexander.
The first store, post office, and school were all built in the early 1900s.
A hotel was built in the late 1920s and parts of that building are incorporated into a current motel.