| Regular Season: Week 1 |
 Lions |
at |
 Steelers |
Sunday, September 16, 1973 |
3:00PM |
DET 10, PIT 24 |
| Regular Season: Week 2 |
 Browns |
at |
Steelers |
Sunday, September 23, 1973 |
3:00PM |
CLE 6, PIT 33 |
| Regular Season: Week 3 |
Steelers |
at |
 Oilers |
Sunday, September 30, 1973 |
3:00PM |
PIT 36, HOU 7 |
| Regular Season: Week 4 |
 Chargers |
at |
Steelers |
Sunday, October 7, 1973 |
3:00PM |
SD 21, PIT 38 |
| Regular Season: Week 5 |
Steelers |
at |
 Bengals |
Sunday, October 14, 1973 |
3:00PM |
PIT 7, CIN 19 |
| Regular Season: Week 6 |
 Jets |
at |
Steelers |
Sunday, October 21, 1973 |
3:00PM |
NYJ 14, PIT 26 |
| Regular Season: Week 7 |
Bengals |
at |
Steelers |
Sunday, October 28, 1973 |
2:00PM |
CIN 13, PIT 20 |
| Regular Season: Week 8 |
 Redskins |
at |
Steelers |
Monday, November 5, 1973 |
3:00PM |
WAS 16, PIT 21 |
| Regular Season: Week 9 |
Steelers |
at |
 Raiders |
Sunday, November 11, 1973 |
3:00PM |
PIT 17, OAK 9 |
| Regular Season: Week 10 |
 Broncos |
at |
Steelers |
Sunday, November 18, 1973 |
3:00PM |
DEN 23, PIT 13 |
| Regular Season: Week 11 |
Steelers |
at |
Browns |
Sunday, November 25, 1973 |
3:00PM |
PIT 16, CLE 21 |
| Regular Season: Week 12 |
Steelers |
at |
 Dolphins |
Monday, December 3, 1973 |
3:00PM |
PIT 26, MIA 30 |
| Regular Season: Week 13 |
Oilers |
at |
Steelers |
Sunday, December 9, 1973 |
3:00PM |
HOU 7, PIT 33 |
| Regular Season: Week 14 |
Steelers |
at |
 49ers |
Saturday, December 15, 1973 |
3:00PM |
PIT 37, SF 14 |
| Divisional Playoffs: Week 15 |
Steelers |
at |
Raiders |
Saturday, December 22, 1973 |
3:00PM |
PIT 14, OAK 33 |