Peter Bent Brigham (1807–1877) was an American millionaire businessman, restaurateur, real estate trader, and director of the Fitchburg Railroad.

[2] Brigham had little formal schooling and went to find work in Boston in his early teens, when his father died.

He worked on Middlesex Canal boats on his way, and then began his career selling fish and oysters in Boston.

[1] Peter Bent Brigham died at his home at the northeast corner of Bulfinch and Allston Streets on Beacon Hill in Boston on 24 May 1877.

He followed his uncle's example by endowing the Robert Breck Brigham Hospital to serve patients with arthritis and other debilitating joint diseases,[1] which opened in 1914.