| E. T. MacDonnell | |
| Birth Date: | 9 August 1886 |
| Birth Place: | Hamilton, New York, U.S. |
| Death Place: | McColl, South Carolina, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1906–1909 |
| Player Team2: | Colgate |
| Coach Sport1: | Football |
| Coach Years2: | 1914–1916 |
| Coach Team2: | LSU |
| Coach Years3: | 1917 |
| Coach Team3: | Wake Forest |
| Coach Sport4: | Basketball |
| Coach Years5: | 1917–1918 |
| Coach Team5: | Wake Forest |
| Coach Sport6: | Baseball |
| Coach Years7: | 1918 |
| Coach Team7: | Wake Forest |
| Overall Record: | 15–13–2 (football) 4–12 (basketball) 9–3 (baseball) |
Edward Thomas MacDonnell (August 9, 1886 – March 30, 1956) was an American football, basketball, and baseball coach.[1] He served as the head football coach at Louisiana State University (LSU) from 1914 to 1916[2] and at Wake Forest University for one season in 1917, compiling a career college football record of 15–13–2. MacDonnell was also the head basketball coach at Wake Forest for the 1917–18 season, tallying a mark of 4–12, and the school's head baseball coach in the spring of 1918, notching a record of 9–3. MacDonald was an alumnus of Colgate University, graduating in 1910. He was a member of Phi Gamma Delta.[3]