| Ralph Ginn | |
| Birth Date: | 23 July 1907 |
| Birth Place: | Lenox, Iowa, U.S. |
| Death Place: | Pierre, South Dakota, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1927–1930 |
| Player Team2: | Tarkio |
| Coach Sport1: | Football |
| Coach Years2: | 1931–1940 |
| Coach Team2: | Tarkio HS (MO) |
| Coach Years3: | 1941–1942 |
| Coach Team3: | Tarkio |
| Coach Years4: | 1944–1947 |
| Coach Team4: | Brookings HS (SD) |
| Coach Years5: | 1947–1968 |
| Coach Team5: | South Dakota State |
| Coach Sport6: | Basketball |
| Coach Years7: | 1941–1942 |
| Coach Team7: | Tarkio |
| Coach Years8: | 1942–1944 |
| Coach Team8: | Wayne State (NE) |
| Overall Record: | 115–101–1 (college football) 18–9 (college basketball, excluding Tarkio) |
| Championships: | Football 9 NCC (1949–1950, 1953–1955, 1957, 1961–1963) |
Ralph Ginn (July 23, 1907 – May 26, 1972) was an American football and basketball player and coach. He served as the head football coach at Tarkio College in Tarkio, Missouri from 1941 to 1942 and South Dakota State University from 1947 to 1968, compiling a career college football coaching record of 115–101–10.[1] Ginn was also the head basketball coach at Wayne State College in Wayne, Nebraska from 1942 to 1944 tallying a mark of 18–9.[2] Ginn died on May 26, 1972, at St. Mary's Hospital in Pierre, South Dakota.[3]