Thomas Edward Dandelet (August 1, 1897 – March 30, 1950) was an American college football and college basketball coach. He served as the head football coach at the First District Agricultural School of Jonesboro, Arkansas—now known as Arkansas State University—from 1922 to 1923 and at Marshall College—now known as Marshall University—from 1931 to 1934, compiling a career college football record of 18–29–3. Dandelet was also the head basketball coach at Marshall from 1931 to 1935, tallying a mark of 43–35.
From 1931 to 1934, Dandelet coached at Marshall, where he compiled an 18–16–2 record despite being underfunded and out-manned often in the Buckeye Conference, which included the University of Cincinnati, Ohio University, the University of Dayton, Miami University and Ohio Wesleyan University. After being released as football coach to make way for Cam Henderson to assume the Herd football and basketball jobs, Dandelet remained as a professor in the Health, Physical Education and Recreation Department and was also Dean of Men through 1950 at Marshall College.