Easterbrook is a surname from Devon, England. Notable people with the surname include:
Arthur Easterbrook (1893–1952), World War I flying ace and WW2 Brigadier General Don Easterbrook, American geologist Edmund P. Easterbrook (1865–1933), 2nd Chief of Chaplains of the US Army Frank H. Easterbrook (born 1948), American judge Giles Easterbrook (1949–2021), composer and music publisher Gregg Easterbrook (born 1953), writer Leslie Easterbrook, actress
Steve Easterbrook (born 1967), British businessman, ex-CEO of McDonald's Steve M. Easterbrook, Canadian academic Syd Easterbrook (1905–1975), English golfer
See also James Easterbrooks (c. 1757–1842), Canadian politician Esterbrook, Wyoming Dude Esterbrook, American baseball player