Jason Williams averaged 8.3 points, 3.3 assists and 1.9 rebounds in 67 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 | 1998-99 |  SAC | 5 | 32.6 | 10.0 | 3.6 | 4.0 | 1.6 | 0.2 | 3.2 | 9.0 | 35.6 | 1.8 | 5.8 | 31.0 | 1.8 | 1.8 | 100.0 | 51.1 | 0.4 | 3.2 | 2.6 | 163 | 50 | 18 | 20 | 8 | 1 | 13 | 15 | -30 |
| 2 | | J. Williams | 1999-00 | SAC | 5 | 29.0 | 10.4 | 1.6 | 2.4 | 0.6 | 0.0 | 3.6 | 9.6 | 37.5 | 1.6 | 5.0 | 32.0 | 1.6 | 2.0 | 80.0 | 49.6 | 0.2 | 1.4 | 1.6 | 145 | 52 | 8 | 12 | 3 | 0 | 8 | 8 | -53 |
| 3 | | J. Williams | 2000-01 | SAC | 8 | 23.9 | 8.8 | 2.3 | 2.9 | 1.0 | 0.0 | 3.3 | 7.6 | 42.6 | 1.4 | 3.8 | 36.7 | 0.9 | 0.9 | 100.0 | 54.6 | 0.0 | 2.3 | 2.6 | 191 | 70 | 18 | 23 | 8 | 0 | 21 | 14 | -19 |
| 4 |  | J. Williams | 2003-04 |  MEM | 4 | 32.5 | 10.8 | 2.3 | 4.5 | 0.5 | 0.0 | 3.8 | 11.5 | 32.6 | 1.5 | 5.3 | 28.6 | 1.8 | 1.8 | 100.0 | 43.8 | 0.3 | 2.0 | 1.8 | 130 | 43 | 9 | 18 | 2 | 0 | 7 | 10 | -33 |
| 5 | | J. Williams | 2004-05 | MEM | 4 | 28.5 | 17.0 | 2.3 | 5.3 | 1.5 | 0.0 | 7.0 | 13.3 | 52.8 | 2.5 | 5.3 | 47.6 | 0.5 | 0.5 | 100.0 | 63.1 | 0.3 | 2.0 | 2.0 | 114 | 68 | 9 | 21 | 6 | 0 | 8 | 7 | -41 |
| 6 |  | J. Williams | 2005-06 |  MIA | 23 | 29.8 | 9.3 | 2.0 | 3.9 | 0.7 | 0.0 | 3.3 | 8.0 | 40.5 | 1.1 | 4.1 | 27.4 | 1.7 | 2.0 | 84.4 | 52.2 | 0.1 | 1.9 | 1.6 | 686 | 214 | 46 | 90 | 15 | 0 | 36 | 42 | -4 |
| 7 | | J. Williams | 2006-07 | MIA | 4 | 28.0 | 5.8 | 2.0 | 3.5 | 1.3 | 0.3 | 1.8 | 7.0 | 25.0 | 1.3 | 4.3 | 29.4 | 1.0 | 1.3 | 80.0 | 38.1 | 0.0 | 2.0 | 0.8 | 112 | 23 | 8 | 14 | 5 | 1 | 3 | 5 | -23 |
| 8 |  | J. Williams | 2009-10 |  ORL | 14 | 13.7 | 2.6 | 0.8 | 1.6 | 0.3 | 0.0 | 0.9 | 2.7 | 34.2 | 0.4 | 1.7 | 25.0 | 0.4 | 0.4 | 100.0 | 46.0 | 0.2 | 0.6 | 0.4 | 192 | 37 | 11 | 23 | 4 | 0 | 5 | 8 | +22 |
| Average | 8.4 | 25.9 | 8.3 | 1.9 | 3.3 | 0.8 | 0.0 | 3.0 | 7.5 | 39.3 | 1.2 | 3.9 | 30.9 | 1.2 | 1.3 | 88.9 | 51.2 | 0.2 | 1.7 | 1.5 | 216.6 | 69.6 | 15.9 | 27.6 | 6.4 | 0.3 | 12.6 | 13.6 | -22.6 | ||||
| Total | 67 | 25.9 | 8.3 | 1.9 | 3.3 | 0.8 | 0.0 | 3.0 | 7.5 | 39.3 | 1.2 | 3.9 | 30.9 | 1.2 | 1.3 | 88.9 | 51.2 | 0.2 | 1.7 | 1.5 | 1,733 | 557 | 127 | 221 | 51 | 2 | 101 | 109 | -181 |
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