Allen Johnson (born 1971) is a retired American hurdler. Allen Johnson may also refer to: Allen Johnson (Indian Army officer) (1829–1907), British Indian Army officer Allen Johnson (historian) (1870–1931), American historian, Professor of History at Yale University Allen Johnson (activist), African-American Civil Rights Leader and minister Allen F. Johnson, American diplomat See also Alann Johnson, American politician Alan Johnson (disambiguation) Alan Johnston (disambiguation)