| Roger Theder | |
| Birth Date: | 22 September 1939 |
| Death Place: | Orinda, California, U.S. |
| Player Years1: | 1960–1962 |
| Player Team1: | Western Michigan |
| Player Positions: | Quarterback |
| Coach Years1: | 1963 |
| Coach Team1: | Bowling Green (GA) |
| Coach Years2: | 1964 |
| Coach Team2: | Shawnee HS (OH) |
| Coach Years3: | 1965–1967 |
| Coach Team3: | Northern Illinois (assistant) |
| Coach Years4: | 1968–1971 |
| Coach Team4: | Stanford (assistant) |
| Coach Years5: | 1972–1977 |
| Coach Team5: | California (assistant) |
| Coach Years6: | 1978–1981 |
| Coach Team6: | California |
| Coach Years7: | 1982–1984 |
| Coach Team7: | Baltimore Colts (RB) |
| Coach Years8: | 1985 |
| Coach Team8: | Arizona Outlaws (OC) |
| Coach Years9: | 1987 |
| Coach Team9: | San Diego Chargers (QB) |
| Coach Years10: | 1993–1996 |
| Coach Team10: | San Jose State (OC) |
| Overall Record: | 18–27 (college) |
| Bowl Record: | 0–1 |
Roger Theder (September 22, 1939 – October 1, 2016) was an American football player and coach. He served as the head football coach at the University of California, Berkeley from 1978 to 1981, compiling an on-field record of 17–28. Theder was later an assistant coach for the Baltimore Colts and the San Diego Chargers of the National Football League (NFL). Theder was an alumnus of Western Michigan University, where he played college football as a quarterback and joined Phi Kappa Tau fraternity. Theder died on October 1, 2016, from Parkinson's disease at the age of 77.[1]