| Harold I. Dean | |
| Birth Date: | 8 May 1884 |
| Alma Mater: | Ohio Wesleyan (1907) |
| Player Sport1: | Football |
| Player Years2: | 1905–1906 |
| Player Team2: | Ohio Wesleyan |
| Coach Sport1: | Football |
| Coach Years2: | 1909–1911 |
| Coach Team2: | Wyoming |
| Coach Sport3: | Basketball |
| Coach Years4: | 1910–1912 |
| Coach Team4: | Wyoming |
| Overall Record: | 11–12–1 (football) 9–13 (basketball) |
Harold Isaac Dean (May 8, 1884 – April 5, 1949) was an American football and college basketball coach. He served as the head football coach at the University of Wyoming from 1909 to 1911, compiling a record of 11–12–1.[1] Dean was he also the head basketball coach at Wyoming from 1910 to 1912, tallying a mark of.[2] He graduated from Ohio Wesleyan University in 1907.[3]