| Forest Loudin | |
| Birth Date: | 26 February 1890 |
| Birth Place: | New London Mills, Illinois, U.S. |
| Death Place: | Keokuk, Iowa, U.S. |
| Coach Sport1: | Football |
| Coach Years2: | 1916–1920 |
| Coach Team2: | Carthage |
| Coach Sport3: | Basketball |
| Coach Years4: | 1914–1918 |
| Coach Team4: | Carthage |
| Coach Years5: | 1919–1921 |
| Coach Team5: | Carthage |
| Coach Sport6: | Baseball |
| Coach Years7: | 1916–1921 |
| Coach Team7: | Carthage |
| Overall Record: | 8–13–2 (football) 24–37 (basketball) 7–12 (baseball) |
Forrest Allen Loudin (February 26, 1890 – September 15, 1935) was an American football, basketball, and baseball coach. He was an alumnus of the University of Iowa, where he played football. Previously he had also coached and taught science and athletics high school in Iowa.[1]
Loudin was the head football coach at Carthage College in Carthage, Illinois for four seasons, from 1916 until 1920, compiling a record of 8–13–2.[2] [3]
Loudin was also professor of Mathematics and Physical Director at his time at Carthage.[4] He died at Keokuk, Iowa in 1935 of an illness contracted during his overseas service in World War I.[5]