Rank Name             Blocks

1.   Hakeem Olajuwon   3830
2.   Dikembe Mutombo   3278
3.   K.Abdul-Jabbar    3189 *
4.   Mark Eaton        3064
5.   David Robinson    2954
6.   Patrick Ewing     2894
7.   Tree Rollins      2542
8.   Shaquille O'Neal  2520
9.   Robert Parish     2361
10.  Alonzo Mourning   2356
11.  Shawn Bradley     2119
12.  Manute Bol        2086
13.  George Johnson    2082 *
14.  Larry Nance       2027
15.  Tim Duncan        1992
16.  Ben Wallace       1873
17.  Theo Ratliff      1855
18.  Elvin Hayes       1771 *
19.  Artis Gilmore     1747
20.  Moses Malone      1733
21.  Kevin McHale      1690
22.  Kevin Garnett     1665
23.  Vlade Divac       1631
24.  Herb Williams     1605
25.  Elden Campbell    1602
26.  Benoit Benjamin   1581
27.  Marcus Camby      1577
28.  Wayne Cooper      1535
29.  Caldwell Jones    1517
30.  Alton Lister      1473
31.  John Williams     1456
32.  Mark West         1403
33.  Jermaine O'Neal   1398
34.  Cliff Robinson    1367
35.  Terry Tyler       1342
36.  Julius Erving     1293
     Greg Ostertag     1293
38.  Elton Brand       1289
     Rasheed Wallace   1289
40.  Shawn Kemp        1279
41.  Dale Davis        1270
42.  James Donaldson   1267
43.  Harvey Catchings  1227
44.  Chris Webber      1200
45.  Bo Outlaw         1193
46.  Adonal Foyle      1185
47.  Elmore Smith      1183 *
48.  Erick Dampier     1175
49.  Sam Lacey         1160 *
50.  Andrei Kirilenko  1158
51.  Bob McAdoo        1147 *
52.  Karl Malone       1145
53.  Horace Grant      1136
54.  Zydrunas Ilgauskas1135
55.  Charles Jones     1134
56.  Joe Barry Carroll 1122
57.  Dan Roundfield    1117
58.  P.J. Brown        1116
59.  Rik Smits         1111
60.  Bob Lanier        1100 *
     Buck Williams     1100
62.  Andrew Lang       1099
63.  Ervin Johnson     1087
64.  Mychal Thompson   1073
65.  Thurl Bailey      1058
66.  Derrick Coleman   1051
67.  Jack Sikma        1048
68.  Robert Horry      1035
69.  Bill Walton       1034
70.  Chris Dudley      1027
71.  Darryl Dawkins    1023
72.  Rick Mahorn       1007
73.  Mike Gminski       989

 * Played part of career before
   stat was kept in 1973-74

Closing in:
Antonio McDyess         981
Pau Gasol               919
Raef LaFrentz           919
Shawn Marion            909
Rasho Nesterovic        879
Samuel Dalembert        834