Goals Against Average is goals allowed per 60 minutes by a goalie. Lower is better. Below are the top 32 NHL playoff players ranked by Playoff Goals Against Average for 1989-90.
| # | Player | Team | GAA |
|---|---|---|---|
| 1 | 0.00 | ||
| 2 | 0.00 | ||
| 3 | A. MoogAndy Moog 29YG | 2.21 | |
| 4 | 2.43 | ||
| 5 | 2.43 | ||
| 6 | 2.49 | ||
| 7 | 2.53 | ||
| 8 | 2.69 | ||
| 9 | 2.74 | ||
| 10 | 2.89 | ||
| 11 | 3.02 | ||
| 12 | 3.02 | ||
| 13 | 3.04 | ||
| 14 | 3.21 | ||
| 15 | 3.25 | ||
| 16 | 3.28 | ||
| 17 | 3.30 | ||
| 18 | M. LiutMike Liut 33YG | 3.31 | |
| 19 | 3.33 | ||
| 20 | 3.33 | ||
| 21 | 3.45 | ||
| 22 | 3.49 | ||
| 23 | 3.62 | ||
| 24 | 3.69 | ||
| 25 | 3.84 | ||
| 26 | 3.92 | ||
| 27 | 4.28 | ||
| 28 | 4.34 | ||
| 29 | 5.13 | ||
| 30 | 5.79 | ||
| 31 | 7.45 | ||
| 32 | 11.04 |