Trueblood is a surname. Notable people with the surname include:Benjamin Franklin Trueblood (1847–1916), American pacifist D. Elton Trueblood (1900–1994), American Quaker theologian Guerdon Trueblood (1933–2021), Costa Rican-American screenwriter Jeremy Trueblood, American football player Kathryn Trueblood, American author Kenneth Nyitray Trueblood (1920–1998), American chemist Lyda Trueblood (1892–1958), American female suspected serial killer Mary Esther Trueblood (1872–1939) was an American mathematician and sociologist Paul Trueblood (1935–2012), American pianist Robert M. Trueblood, chairman of the Trueblood Committee which attempted to set out the objectives of financial accounting Ted Trueblood (1913-1982), American outdoor writer and conservationist Thomas Trueblood (1856–1951), American professor of elocution and oratory and the first coach of the University of Michigan golf and debate teams Valerie Trueblood, American writer Wilbur Trueblood (1874–1937), American architect Trueblood (band) American teen indie and alternative rock band