20 Coaches
- Active head coach in bold, + indicates Hall of Fame
| Reg. Season | Playoffs | Combined | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rk | Coach | From | To | Yrs | G | W | L | T | G > .500 | Yrs | G | W | L | G | W | L | T | W-L% | AvRk | BstRk | Chmp | SBwl | Conf | ||
| George Seifert | 1989 | 1996 | 8 | 128 | 98 | 30 | 0 | .766 | 68 | 7 | 15 | 10 | 5 | .667 | 143 | 108 | 35 | 0 | .755 | 1.4 | 1 | 2 | 2 | 2 | |
| Bill Walsh+ | 1979 | 1988 | 10 | 152 | 92 | 59 | 1 | .609 | 33 | 7 | 14 | 10 | 4 | .714 | 166 | 102 | 63 | 1 | .617 | 1.8 | 1 | 3 | 3 | 3 | |
| Kyle Shanahan | 2017 | 2025 | 9 | 149 | 82 | 67 | 0 | .550 | 15 | 5 | 14 | 9 | 5 | .643 | 163 | 91 | 72 | 0 | .558 | 2.6 | 1 | 0 | 0 | 2 | |
| Buck Shaw | 1946 | 1954 | 9 | 114 | 71 | 39 | 4 | .645 | 32 | 1 | 2 | 1 | 1 | .500 | 116 | 72 | 40 | 4 | .643 | 2.6 | 2 | 0 | 0 | 0 | |
| Steve Mariucci | 1997 | 2002 | 6 | 96 | 57 | 39 | 0 | .594 | 18 | 4 | 7 | 3 | 4 | .429 | 103 | 60 | 43 | 0 | .583 | 2.3 | 1 | 0 | |||
| Dick Nolan | 1968 | 1975 | 8 | 112 | 54 | 53 | 5 | .505 | 1 | 3 | 5 | 2 | 3 | .400 | 117 | 56 | 56 | 5 | .500 | 2.1 | 1 | 0 | 0 | 0 | |
| Jim Harbaugh | 2011 | 2014 | 4 | 64 | 44 | 19 | 1 | .695 | 25 | 3 | 8 | 5 | 3 | .625 | 72 | 49 | 22 | 1 | .688 | 1.8 | 1 | 0 | 1 | ||
| Red Hickey | 1959 | 1963 | 5 | 55 | 27 | 27 | 1 | .500 | 0 | 0 | 0 | 0 | 0 | 55 | 27 | 27 | 1 | .500 | 4.4 | 2 | 0 | 0 | 0 | ||
| Jack Christiansen+ | 1963 | 1967 | 5 | 67 | 26 | 38 | 3 | .406 | -12 | 0 | 0 | 0 | 0 | 67 | 26 | 38 | 3 | .406 | 5.0 | 3 | 0 | 0 | 0 | ||
| Frankie Albert | 1956 | 1958 | 3 | 36 | 19 | 16 | 1 | .543 | 3 | 1 | 1 | 0 | 1 | .000 | 37 | 19 | 17 | 1 | .528 | 2.7 | 1 | 0 | 0 | 0 | |
| Mike Nolan | 2005 | 2008 | 4 | 55 | 18 | 37 | 0 | .327 | -19 | 0 | 0 | 0 | 0 | 55 | 18 | 37 | 0 | .327 | 3.0 | 2 | 0 | ||||
| Mike Singletary+ | 2008 | 2010 | 3 | 40 | 18 | 22 | 0 | .450 | -4 | 0 | 0 | 0 | 0 | 40 | 18 | 22 | 0 | .450 | 2.3 | 2 | 0 | 0 | 0 | ||
| Dennis Erickson | 2003 | 2004 | 2 | 32 | 9 | 23 | 0 | .281 | -14 | 0 | 0 | 0 | 0 | 32 | 9 | 23 | 0 | .281 | 3.5 | 3 | 0 | ||||
| Monte Clark | 1976 | 1976 | 1 | 14 | 8 | 6 | 0 | .571 | 2 | 0 | 0 | 0 | 0 | 14 | 8 | 6 | 0 | .571 | 2.0 | 2 | 0 | 0 | 0 | ||
| Jim Tomsula | 2010 | 2015 | 2 | 17 | 6 | 11 | 0 | .353 | -5 | 0 | 0 | 0 | 0 | 17 | 6 | 11 | 0 | .353 | 3.5 | 3 | 0 | ||||
| Ken Meyer | 1977 | 1977 | 1 | 14 | 5 | 9 | 0 | .357 | -4 | 0 | 0 | 0 | 0 | 14 | 5 | 9 | 0 | .357 | 3.0 | 3 | 0 | 0 | 0 | ||
| Red Strader | 1955 | 1955 | 1 | 12 | 4 | 8 | 0 | .333 | -4 | 0 | 0 | 0 | 0 | 12 | 4 | 8 | 0 | .333 | 5.0 | 5 | 0 | 0 | 0 | ||
| Chip Kelly | 2016 | 2016 | 1 | 16 | 2 | 14 | 0 | .125 | -12 | 0 | 0 | 0 | 16 | 2 | 14 | 0 | .125 | 4.0 | 4 | 0 | 0 | 0 | |||
| Pete McCulley | 1978 | 1978 | 1 | 9 | 1 | 8 | 0 | .111 | -7 | 0 | 0 | 0 | 0 | 9 | 1 | 8 | 0 | .111 | 4.0 | 4 | 0 | 0 | 0 | ||
| Fred O'Connor | 1978 | 1978 | 1 | 7 | 1 | 6 | 0 | .143 | -5 | 0 | 0 | 0 | 0 | 7 | 1 | 6 | 0 | .143 | 4.0 | 4 | 0 | 0 | 0 | ||

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