Game-winning goals count goals that end up deciding wins. Higher means the player scored more goals that made the final difference. Below are the top 17 NHL playoff players ranked by Playoff Game Winning Goals for 1920-21.
| # | Player | Team | GWG |
|---|---|---|---|
| 1 | C. DennenyCy Denneny 28YLW | 1 | |
| 2 | 1 | ||
| 3 | 0 | ||
| 4 | 0 | ||
| 5 | 0 | ||
| 6 | 0 | ||
| 7 | 0 | ||
| 8 | 0 | ||
| 9 | B. DyeBabe Dye 22YRW | 0 | |
| 10 | 0 | ||
| 11 | 0 | ||
| 12 | 0 | ||
| 13 | 0 | ||
| 14 | R. SmylieRod Smylie 24YLW | 0 | |
| 15 | 0 | ||
| 16 | 0 | ||
| 17 | L. GrahamLeth Graham 25YLW | 0 |