Stanley Bréhaut Egerton Ryerson (March 12, 1911 – 25 Apr 1998) was a Canadian historian, educator, political activist.
His parents were Edward Stanley Ryerson and Tessie De Vigne, a well-off middle-class family in Toronto.
Ryerson could trace his paternal lineage back to Egerton Ryerson, the "Pope of Methodism" in nineteenth century Toronto.
His grandmother, Emily Eliza Beatty, was a sister-in-law to William McDougall, one of the Fathers of Confederation; and, on his mother's side, he was related to Louis Antoine Bréhaut de l'Isle, French Commander at Trois-Rivières in 1638.