Goals Against Average is goals allowed per 60 minutes by a goalie. Lower is better. Below are the top 19 NHL playoff players ranked by Playoff Goals Against Average for 1974-75.
| # | Player | Team | GAA |
|---|---|---|---|
| 1 | 1.89 | ||
| 2 | 1.95 | ||
| 3 | 2.12 | ||
| 4 | 2.17 | ||
| 5 | 2.54 | ||
| 6 | 2.68 | ||
| 7 | 2.82 | ||
| 8 | 2.86 | ||
| 9 | 2.88 | ||
| 10 | 3.24 | ||
| 11 | 3.27 | ||
| 12 | 3.40 | ||
| 13 | 3.83 | ||
| 14 | 3.86 | ||
| 15 | 4.06 | ||
| 16 | 4.16 | ||
| 17 | 4.33 | ||
| 18 | 5.05 | ||
| 19 | 6.02 |