Wilbraham is a town in Hampden County, Massachusetts, United States. It is a suburb of the City of Springfield, Massachusetts and part of the Springfield Metropolitan Statistical Area. The population was 14,868 at the 2010 census.
Wilbraham is situated in such a way that its area lies within two broad physiographic provinces that cross Massachusetts from north to south. The Wilbraham Mountains which dominate the geography of the town are part of the Central Upland of Massachusetts, while the portion of town west of the mountains lies within the Connecticut Valley Lowland. Millions of years ago, the flat area of Wilbraham west of the mountains were once part of a shallow inland sea. Wilbraham also has the Wilbraham Mountains range, which starts at the north end of town and extends into Hampden. The highest point in town is Mt. Chapin at 937 feet above sea level. Other high peaks are Mount Vision (formerly Rattlesnake Peak) and Wigwam Hill.
As of the census of 2000, there were 13,473 people, 4,891 households, and 3,873 families residing in the town. The population density was 606.3 people per square mile (234.1/kmē). There were 5,048 housing units at an average density of 227.2 per square mile (87.7/kmē).