Kareem Abdul-Jabbar led the NBA in Blocks from 1970–1980 with 340.
That is 6 more blocks than second-place Kareem Abdul-Jabbar.
| Rk | Player | Season | Value |
|---|---|---|---|
| 1 | Kareem Abdul-Jabbar | 1978-79 | 340 |
| 2 | Kareem Abdul-Jabbar | 1975-76 | 334 |
| 3 | Kareem Abdul-Jabbar | 1973-74 | 323 |
| 4 | Kareem Abdul-Jabbar | 1979-80 | 316 |
| 5 | Bill Walton | 1976-77 | 274 |
| 6 | Kareem Abdul-Jabbar | 1976-77 | 246 |
| 7 | Elmore Smith | 1973-74 | 233 |
| 8 | Elmore Smith | 1975-76 | 226 |
| 9 | Tree Rollins | 1978-79 | 219 |
| 10 | Robert Parish | 1978-79 | 217 |
| 11 | Tree Rollins | 1979-80 | 214 |
| 12 | Kareem Abdul-Jabbar | 1974-75 | 208 |
| 13 | Billy Paultz | 1977-78 | 198 |
| 14 | George Johnson | 1975-76 | 193 |
| 15 | Artis Gilmore | 1976-77 | 184 |