Chesley Metcalf Johnston (November 8, 1870 – October 23, 1942)^[1][2] was an American college football coach. He was the first head football coach at Maine State College—now known as the University of Maine—where he coached in 1892 and compiled a 0–2 record.^[3][4]

Johnston attended Maine State College^[5] but did not graduate. He then attended Tufts University and graduated in 1895 from the College of Letters with a bachelor of civil engineering degree. He was a member of the Alpha Tau Omega (ΑΤΩ) fraternity.^[6][7][8][9] In 1893, The Boston Globe announced that Johnston, who "played on the Tufts eleven last year," was engaged to coach the "M. S. C." football players "who are already doing excellent work".^[10] The reason for the difference between the date of the cited announcement (1893) and his coaching record (1892) is not clear. Following his graduation, Johnston pursued a career as a construction engineer. He died on October 23, 1942, in Philadelphia, Pennsylvania of liver cancer, at the age of 72.^[2]