| Regular Season: Week 1 |
 Vikings |
at |
 49ers |
Sunday, September 11, 1966 |
3:00PM |
MIN 20, SF 20 |
| Regular Season: Week 3 |
49ers |
at |
 Colts |
Sunday, September 25, 1966 |
3:00PM |
SF 14, BAL 36 |
| Regular Season: Week 3 |
49ers |
at |
 Rams |
Friday, September 30, 1966 |
3:00PM |
SF 3, LA 34 |
| Regular Season: Week 5 |
 Packers |
at |
49ers |
Sunday, October 9, 1966 |
3:00PM |
GB 20, SF 21 |
| Regular Season: Week 6 |
49ers |
at |
 Falcons |
Sunday, October 16, 1966 |
3:00PM |
SF 44, ATL 7 |
| Regular Season: Week 7 |
 Lions |
at |
49ers |
Sunday, October 23, 1966 |
3:00PM |
DET 24, SF 27 |
| Regular Season: Week 8 |
49ers |
at |
Vikings |
Sunday, October 30, 1966 |
2:00PM |
SF 3, MIN 28 |
| Regular Season: Week 9 |
Rams |
at |
49ers |
Sunday, November 6, 1966 |
3:00PM |
LA 13, SF 21 |
| Regular Season: Week 10 |
49ers |
at |
 Bears |
Sunday, November 13, 1966 |
3:00PM |
SF 30, CHI 30 |
| Regular Season: Week 11 |
 Eagles |
at |
49ers |
Sunday, November 20, 1966 |
3:00PM |
PHI 35, SF 34 |
| Regular Season: Week 12 |
49ers |
at |
Lions |
Thursday, November 24, 1966 |
3:00PM |
SF 41, DET 14 |
| Regular Season: Week 13 |
49ers |
at |
Packers |
Sunday, December 4, 1966 |
3:00PM |
SF 7, GB 20 |
| Regular Season: Week 14 |
Bears |
at |
49ers |
Sunday, December 11, 1966 |
3:00PM |
CHI 14, SF 41 |
| Regular Season: Week 15 |
Colts |
at |
49ers |
Sunday, December 18, 1966 |
3:00PM |
BAL 30, SF 14 |