Hakeem Olajuwon's 3,830 regular-season blocks lead Dikembe Mutombo by 541, and no active player is in the NBA's career top ten.
Hakeem Olajuwon has the most blocks in NBA history, 3,830 in the regular season. Dikembe Mutombo is second with 3,289 and Kareem Abdul-Jabbar third with 3,189. The ranking uses career NBA regular-season blocked shots (playoffs not included) from Wikipedia's list of NBA career blocks leaders, with statistics accurate as of October 21, 2026.
Hakeem Olajuwon is the only player in the top ten with more than 3,300 career blocks, and Mark Eaton has the highest average here at 3.50 per game. This list ranks players by career NBA regular-season blocked shots, with statistics accurate as of October 21, 2026. Blocks were first officially recorded in the 1973-74 season. No active player is in the top ten; the highest-ranked active player is Brook Lopez, 14th with 2,148.
Olajuwon holds the NBA career record with 3,830 blocks, 541 more than Dikembe Mutombo, at 3.09 per game over 1,238 games. He played for the Houston Rockets (1984-2001) and Toronto Raptors (2001-2002).
Mutombo is second with 3,289 blocks at 2.75 per game, playing for six franchises from Denver to Houston. He finishes 100 ahead of Kareem Abdul-Jabbar.
Abdul-Jabbar's 3,189 blocks and 1,239 games count only from 1973-74 onward, because blocks were not recorded during his Milwaukee Bucks seasons from 1969 to 1973.
Eaton blocked 3,064 shots in 875 games, all for the Utah Jazz. His 3.50 per game is the highest average in this top ten, and his 875 games are the fewest.
Duncan is fifth with 3,020 blocks, all with the San Antonio Spurs, at 2.17 per game over 1,392 games. He is 66 blocks ahead of David Robinson, the other Spurs-only player in the top ten.
Robinson recorded 2,954 blocks in 987 games for the San Antonio Spurs. His 2.99 per game is the third-highest average in the top ten, behind Mark Eaton and Hakeem Olajuwon.
Ewing has 2,894 blocks at 2.45 per game, for the New York Knicks (1985-2000), Seattle SuperSonics (2000-2001) and Orlando Magic (2001-2002).
O'Neal ranks eighth with 2,732 blocks at 2.26 per game, playing for six franchises from Orlando to Boston.
Rollins blocked 2,542 shots in 1,156 games at 2.20 per game, starting with the Atlanta Hawks (1977-1988). He and Mark Eaton are the two players in this top ten not marked by the source as Hall of Fame inductees.
Parish rounds out the top ten with 2,361 blocks. His 1,611 games are the most in this top ten, and his 1.47 per game is the lowest average here; Alonzo Mourning is 11th, 5 blocks behind him.
| # | Name | Position | Teams (years) | Games played | Blocks per game | Hall of Fame |
|---|---|---|---|---|---|---|
| 1 | Hakeem Olajuwon | C | Houston Rockets (1984-2001), Toronto Raptors (2001-2002) | 1238 | 3.09 | Inducted |
| 2 | Dikembe Mutombo | C | Denver Nuggets (1991-1996), Atlanta Hawks (1996-2001), Philadelphia 76ers (2001-2002), New Jersey Nets (2002-2003), New York Knicks (2003-2004), Houston Rockets (2004-2009) | 1196 | 2.75 | Inducted |
| 3 | Kareem Abdul-Jabbar | C | Milwaukee Bucks (1969-1973, blocks not recorded), Milwaukee Bucks (1973-1975), Los Angeles Lakers (1975-1989) | 1239 | 2.57 | Inducted |
| 4 | Mark Eaton | C | Utah Jazz (1982-1993) | 875 | 3.5 | Not marked as inducted in source |
| 5 | Tim Duncan | PF/C | San Antonio Spurs (1997-2016) | 1392 | 2.17 | Inducted |
| 6 | David Robinson | C | San Antonio Spurs (1989-2003) | 987 | 2.99 | Inducted |
| 7 | Patrick Ewing | C | New York Knicks (1985-2000), Seattle SuperSonics (2000-2001), Orlando Magic (2001-2002) | 1183 | 2.45 | Inducted |
| 8 | Shaquille O'Neal | C | Orlando Magic (1992-1996), Los Angeles Lakers (1996-2004), Miami Heat (2004-2008), Phoenix Suns (2008-2009), Cleveland Cavaliers (2009-2010), Boston Celtics (2010-2011) | 1207 | 2.26 | Inducted |
| 9 | Tree Rollins | C | Atlanta Hawks (1977-1988), Cleveland Cavaliers (1988-1990), Detroit Pistons (1990-1991), Houston Rockets (1991-1993), Orlando Magic (1993-1995) | 1156 | 2.2 | Not marked as inducted in source |
| 10 | Robert Parish | C | Golden State Warriors (1976-1980), Boston Celtics (1980-1994), Charlotte Hornets (1994-1996), Chicago Bulls (1996-1997) | 1611 | 1.47 | Inducted |
Players are ranked by total career NBA regular-season blocked shots, most first, as listed on Wikipedia's List of NBA career blocks leaders (revision 1381486331; the page states its statistics are accurate as of October 21, 2026). Only regular-season games count, so playoff blocks are excluded. The source notes that its team listings do not include American Basketball Association (ABA) teams other than those admitted into the NBA in 1976. Blocked shots were first officially recorded in the 1973-74 season, and the source excludes games from earlier seasons from both games played and the per-game average. Games played, blocks per game (rounded to the nearest hundredth by the source), team spans and Hall of Fame status are taken from the same table; Hall of Fame status follows the source's marker for Naismith Memorial Basketball Hall of Fame inductees. Team year spans are given as the source displays them. There are no ties in the top ten.
Hakeem Olajuwon, with 3,830 regular-season blocks in 1,238 games. Dikembe Mutombo is second with 3,289.
No. As of October 21, 2026, none of the ten is marked as an active player by the source. The highest-ranked active player is Brook Lopez, 14th with 2,148 blocks, 213 behind Robert Parish at No. 10.
Blocks were first officially recorded in the 1973-74 season. The source counts only games from that season onward, so his Milwaukee Bucks seasons from 1969 to 1973 are not in his 3,189 blocks or 1,239 games.
Playoff blocks are not included: the source ranks career regular-season blocked shots. On the ABA, the source says only that ABA teams other than those admitted into the NBA in 1976 are not included in its team listings.
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