Brumbaugh is a surname. Notable people with the surname include:
Carl Brumbaugh (1906–1969), American football quarterbackClement L. Brumbaugh (1863–1921), U.S. Representative from OhioCliff Brumbaugh (born 1974), American baseball playerD. Emmert Brumbaugh (1894–1969), Republican member of the U.S. House of Representatives from Pennsylvania, 5th generation descendant of Johannes Henrich BrumbachJohn Brombaugh (born 1937), American pipe organ builder, 7th generation descendant of Johannes Henrich BrumbachMartin Grove Brumbaugh (1862–1930), Pennsylvania's 25th Governor, a Republican; 5th generation descendant of Johannes Henrich Brumbach