Elvis Grbac has the most passing yards for the 49ers in a Week-12 game, with 382 yards versus the Dolphins on November 20, 1995.
| NAME | YDS | DATE | TM | OPP | CMP | ATT | PCT | AVG | TD | INT | RTG | TD% | INT% | SCK | SCKY | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | E. Grbac | 382 | 11/20/1995 |  SF | @ |  MIA | 31 | 41 | 75.6 | 9.3 | 4 | 0 | 136.4 | 9.8 | 0.0 | 1 | 6 |
| 2 | | Y.A. Tittle | 371 | 12/13/1953 | SF | vs |  BAL | 29 | 44 | 65.9 | 8.4 | 4 | 2 | 103.5 | 9.1 | 4.5 | ||
| 3 |  | J. Montana | 342 | 11/29/1987 | SF | vs |  CLE | 23 | 31 | 74.2 | 11.0 | 4 | 1 | 136.0 | 12.9 | 3.2 | 1 | 6 |
| 4 | | J. Montana | 334 | 11/28/1982 | SF | vs |  NO | 27 | 42 | 64.3 | 8.0 | 2 | 1 | 94.7 | 4.8 | 2.4 | 2 | 13 |
| 5 |  | S. Young | 325 | 11/20/1994 | SF | vs |  RAM | 30 | 44 | 68.2 | 7.4 | 4 | 0 | 120.0 | 9.1 | 0.0 | 0 | 0 |
| 6 | | B. Gabbert | 318 | 11/29/2015 | SF | vs |  ARI | 25 | 36 | 69.4 | 8.8 | 1 | 1 | 94.4 | 2.8 | 2.8 | 2 | 17 |
| 7 | | S. Hill | 303 | 11/23/2008 | SF | @ |  DAL | 21 | 33 | 63.6 | 9.2 | 2 | 1 | 100.9 | 6.1 | 3.0 | 4 | 25 |
| 8 | | J. Brodie | 301 | 12/1/1968 | SF | vs |  GB | 24 | 39 | 61.5 | 7.7 | 3 | 1 | 100.5 | 7.7 | 2.6 | ||
| 9 |  | C. Kaepernick | 296 | 11/27/2016 | SF | @ | MIA | 29 | 46 | 63.0 | 6.4 | 3 | 1 | 94.1 | 6.5 | 2.2 | 2 | 14 |
| 10 | | J. Montana | 292 | 11/27/1989 | SF | vs |  NYG | 27 | 33 | 81.8 | 8.8 | 3 | 0 | 133.8 | 9.1 | 0.0 | 2 | 7 |
| 11 | | S. Young | 290 | 11/22/1998 | SF | vs | NO | 22 | 31 | 71.0 | 9.4 | 4 | 1 | 126.3 | 12.9 | 3.2 | 3 | 1 |
| 12 | | J. Garcia | 284 | 11/25/2002 | SF | vs |  PHI | 29 | 51 | 56.9 | 5.6 | 2 | 0 | 85.7 | 3.9 | 0.0 | 3 | 26 |
| 13 | | J. Montana | 283 | 11/22/1981 | SF | @ | LA | 19 | 30 | 63.3 | 9.4 | 0 | 1 | 80.3 | 0.0 | 3.3 | 3 | 24 |
| 14 | | J. Brodie | 272 | 12/2/1962 | SF | @ |  MIN | 12 | 21 | 57.1 | 13.0 | 4 | 0 | 141.4 | 19.0 | 0.0 | ||
| 15 | | E. Grbac | 268 | 11/17/1996 | SF | vs |  BAL | 26 | 31 | 83.9 | 8.6 | 1 | 2 | 86.6 | 3.2 | 6.5 | 2 | 6 |
| 16 | | J. Brodie | 268 | 12/6/1970 | SF | vs |  ATL | 20 | 30 | 66.7 | 8.9 | 1 | 1 | 92.1 | 3.3 | 3.3 | ||
| 17 | | S. Spurrier | 257 | 12/4/1972 | SF | vs | LA | 27 | 46 | 58.7 | 5.6 | 2 | 3 | 61.6 | 4.3 | 6.5 | ||
| 18 | | C. Kaepernick | 256 | 11/23/2014 | SF | vs |  WAS | 20 | 29 | 69.0 | 8.8 | 1 | 1 | 93.5 | 3.4 | 3.4 | 2 | 10 |
| 19 | | T. Dilfer | 256 | 11/25/2007 | SF | @ | ARI | 25 | 39 | 64.1 | 6.6 | 2 | 0 | 99.9 | 5.1 | 0.0 | 3 | 19 |
| 20 | | J. Brodie | 254 | 11/24/1966 | SF | @ |  DET | 14 | 26 | 53.8 | 9.8 | 2 | 3 | 73.7 | 7.7 | 11.5 | ||
| 21 |  | J. Garoppolo | 253 | 11/24/2019 | SF | vs | GB | 14 | 20 | 70.0 | 12.7 | 2 | 0 | 145.8 | 10.0 | 0.0 | 3 | 26 |
| 22 | | N. Mullens | 252 | 11/29/2020 | SF | @ |  LAR | 24 | 35 | 68.6 | 7.2 | 0 | 1 | 77.3 | 0.0 | 2.9 | 2 | 19 |
| 23 | | J. Montana | 247 | 11/18/1984 | SF | vs |  TB | 19 | 23 | 82.6 | 10.7 | 0 | 0 | 111.4 | 0.0 | 0.0 | 2 | 9 |
| 24 | | Y.A. Tittle | 241 | 12/14/1958 | SF | vs | BAL | 24 | 36 | 66.7 | 6.7 | 1 | 0 | 94.8 | 2.8 | 0.0 | ||
| 25 | | J. Montana | 237 | 11/25/1985 | SF | vs |  SEA | 17 | 33 | 51.5 | 7.2 | 2 | 3 | 57.3 | 6.1 | 9.1 | 1 | 7 |
Results may be incomplete. StatMuse has complete game-level data for passing yards going back to the 1950 season.
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