Dwight Howard led the NBA in Blocks in 2008-09 with 10.
That is 1 more blocks than second-place Jermaine O'Neal.
| Rk | Player | Team | Date | Value |
|---|---|---|---|---|
| 1 | Dwight Howard | ORL | 2008-11-12 | 10 |
| 2 | Jermaine O'Neal | TOR | 2009-02-04 | 9 |
| 3 | Dwight Howard | ORL | 2009-06-11 | 9 |
| 4 | Tyrus Thomas | CHI | 2009-01-03 | 8 |
| 5 | Joakim Noah | CHI | 2009-01-25 | 8 |
| 6 | Chris Andersen | DEN | 2009-04-02 | 8 |
| 7 | Dwight Howard | ORL | 2009-02-17 | 8 |
| 8 | Tyrus Thomas | CHI | 2009-03-28 | 7 |
| 9 | Kendrick Perkins | BOS | 2009-04-28 | 7 |
| 10 | Kendrick Perkins | BOS | 2008-11-07 | 7 |
| 11 | Kendrick Perkins | BOS | 2009-04-03 | 7 |
| 12 | Chris Andersen | DEN | 2009-04-08 | 7 |
| 13 | Boris Diaw | CHA | 2009-02-11 | 7 |
| 14 | Chris Andersen | DEN | 2009-02-27 | 7 |
| 15 | Marcus Camby | LAC | 2008-12-06 | 7 |