| T. R. Mobley | |
| Birth Date: | 20 April 1892 |
| Death Place: | Pineville, Louisiana, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1913–1914 |
| Player Team2: | LSU |
| Player Positions: | Guard, center |
| Coach Sport1: | Football |
| Coach Years2: | 1916 |
| Coach Team2: | Southwest Louisiana |
| Coach Years3: | 1919 |
| Coach Team3: | Southwest Louisiana |
| Coach Years4: | 1921–1930 |
| Coach Team4: | Southwest Louisiana |
| Coach Sport5: | Basketball |
| Coach Years6: | 1921–1925 |
| Coach Team6: | Southwest Louisiana |
| Coach Sport7: | Baseball |
| Coach Years8: | 1922–1927 |
| Coach Team8: | Southwest Louisiana |
| Admin Years1: | 1926–1930 |
| Admin Team1: | Southwest Louisiana |
| Overall Record: | 56–48–7 (football) |
Thomas Ray Mobley Sr. (April 20, 1892 – May 13, 1964) was an American college athletic coach and athletic director. He served in a number of head coaching roles at the University of Louisiana at Lafayette–then known as Southwest Louisiana Institute–including head football (1916, 1919, 1921–1930), basketball (1921–1925), and baseball (1922–1927).
Mobley played college football at Louisiana State University (LSU), lettering from 1913 to 1914.[1] He served in the United States Army during World War II, attaining the rank of captain. He was an officer in the Reserve Corps of the Army in 1920.[2]
Mobley was the department commander of the American Legion in Louisiana from 1931 to 1932. He died on May 13, 1964, at a hospital in Pineville, Louisiana.[3]