| Glenn Thistlethwaite | |
| Birth Date: | 18 March 1885 |
| Birth Place: | Franklin, Indiana, U.S. |
| Death Place: | Richmond, Virginia, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1905–1907 |
| Player Team2: | Earlham |
| Player Positions: | Tackle |
| Coach Sport1: | Football |
| Coach Years2: | 1908 |
| Coach Team2: | Illinois College |
| Coach Years3: | 1909–1912 |
| Coach Team3: | Earlham |
| Coach Years4: | 1910s |
| Coach Team4: | Oak Park HS (IL) |
| Coach Years5: | 1922–1926 |
| Coach Team5: | Northwestern |
| Coach Years6: | 1927–1931 |
| Coach Team6: | Wisconsin |
| Coach Years7: | 1932–1933 |
| Coach Team7: | Carroll (WI) |
| Coach Years8: | 1934–1941 |
| Coach Team8: | Richmond |
| Coach Sport9: | Basketball |
| Coach Years10: | 1909–1913 |
| Coach Team10: | Earlham |
| Coach Sport11: | Baseball |
| Coach Years12: | 1910–1911 |
| Coach Team12: | Earlham |
| Coach Years13: | 1913 |
| Coach Team13: | Earlham |
| Coach Sport14: | Men's track and field |
| Coach Years15: | 1935–1941 |
| Coach Team15: | Richmond |
| Admin Years1: | 1934–1942 |
| Admin Team1: | Richmond |
| Overall Record: | 117–74–16 (college football) 22–25 (college basketball) 18–17–1 (college baseball) |
| Championships: | Football 1 Big Ten (1926) 1 Virginia (1934) |
Glenn Franklin Thistlethwaite (March 18, 1885 – October 6, 1956) was an American football, basketball, baseball, and track and field coach. He served as the head football coach at Illinois College (1908), Earlham College (1909–1912), Northwestern University (1922–1926), the University of Wisconsin–Madison (1927–1931), Carroll College—now known as Carroll University—in Waukesha, Wisconsin (1932–1933), and the University of Richmond (1934–1941), compiling a career college football record of 117–74–16. Coaching at Northwestern from 1922 to 1926, Thistlethwaite compiled a 21–17–1 record, making him one of the most successful coaches in Northwestern Wildcats football history. In 1926, his team won a share of the Big Ten Conference title, only the second in school history, and his tenure sparked a revival in Northwestern football after a post-World War I decline. From 1927 to 1931, Thistlethwaite coached at Wisconsin, tallying a 26–16–3 mark. From 1934 to 1941, he coached at Richmond, where he oversaw the school's entry into the Southern Conference in 1936. Born in Franklin, Indiana in 1885, Thistlethwaite died at the age of 71, on October 6, 1956, of a heart attack at a hospital in Richmond, Virginia.[1]
Thistlethwaite was the 15th head football coach at Northwestern University in Evanston, Illinois and held that position for five seasons, from 1922 until 1926. His record at Northwestern was 21–17–1.[2]
Thistlethwaite was the 17th head football coach at Carroll College—now known as Carroll University—in Waukesha, Wisconsin and held that position for two seasons, from 1932 until 1933. His record at Carroll College was 10–2–1.