John Williams averaged 7.4 points, 4.2 rebounds and 2.3 assists in 13 games in the playoffs in his career.
| NAME | SEASON | TM | GP | MPG | PPG | RPG | APG | SPG | BPG | FGM | FGA | FG% | 3PM | 3PA | 3P% | FTM | FTA | FT% | TS% | OREB | DREB | TPG | MIN | PTS | REB | AST | STL | BLK | TOV | PF | +/- | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | J. Williams | 1986-87 |  WAS | 3 | 16.3 | 6.7 | 3.7 | 0.7 | 0.7 | 0.0 | 2.7 | 4.7 | 57.1 | 0.0 | 0.3 | 0.0 | 1.3 | 2.3 | 57.1 | 58.5 | 1.3 | 2.3 | 0.7 | 49 | 20 | 11 | 2 | 2 | 0 | 2 | 3 | |
| 2 | | J. Williams | 1987-88 | WAS | 5 | 37.0 | 13.0 | 5.8 | 4.2 | 1.6 | 0.8 | 4.6 | 9.6 | 47.9 | 0.0 | 0.2 | 0.0 | 3.8 | 6.4 | 59.4 | 52.4 | 2.2 | 3.6 | 2.4 | 185 | 65 | 29 | 21 | 8 | 4 | 12 | 18 | |
| 3 |  | J. Williams | 1992-93 |  LAC | 5 | 19.6 | 2.2 | 2.8 | 1.4 | 1.0 | 0.0 | 0.8 | 3.6 | 22.2 | 0.4 | 0.6 | 66.7 | 0.2 | 0.4 | 50.0 | 29.1 | 1.0 | 1.8 | 1.2 | 98 | 11 | 14 | 7 | 5 | 0 | 6 | 17 | |
| Average | 4.3 | 25.5 | 7.4 | 4.2 | 2.3 | 1.2 | 0.3 | 2.7 | 6.2 | 43.8 | 0.2 | 0.4 | 40.0 | 1.8 | 3.2 | 58.5 | 49.0 | 1.5 | 2.6 | 1.5 | 110.7 | 32.0 | 18.0 | 10.0 | 5.0 | 1.3 | 6.7 | 12.7 | |||||
| Total | 13 | 25.5 | 7.4 | 4.2 | 2.3 | 1.2 | 0.3 | 2.7 | 6.2 | 43.8 | 0.2 | 0.4 | 40.0 | 1.8 | 3.2 | 58.5 | 49.0 | 1.5 | 2.6 | 1.5 | 332 | 96 | 54 | 30 | 15 | 4 | 20 | 38 |
Cavaliers 
Celtics 
Knicks 
Magic 
Bucks 
Heat 
Thunder 
Rockets 
Grizzlies 
Mavericks 
Nuggets 
Lakers 
DET 
SAC 
UTA 
POR 
TOR 
NOP 
BKN 
PHI 
GSW 
LAC 
