Heavyweight (Super Belt: Muhammad Ali)
| No. | Name | Duration of reign | Defenses |
|---|---|---|---|
| 1 | Jack Dempsey | July 2, 1921 — September 23, 1926 | 2 |
| 2 | Gene Tunney | September 23, 1926 — July 31, 1931r | 2 |
| 3 | Jack Sharkey | September 26, 1929 — June 12, 1930 | 0 |
| 4 | Max Schmeling | June 12, 1930 — June 21, 1932 | 1 |
| 5 | Jack Sharkey (2) | June 21, 1932 — June 29, 1933 | 0 |
| 6 | Primo Carnera | not recognized by the NBA as champion | 0 |
| 7 | Max Baer | June 14, 1934 — June 13, 1935 | 0 |
| 8 | James J. Braddock | June 13, 1935 — June 22, 1937 | 0 |
| 9 | Joe Louis | June 22, 1937 — March 1, 1949r | 25 |
| 10 | Ezzard Charles | June 22, 1949 — July 18, 1951 | 8 |
| 11 | Joe Walcott | July 18, 1951 — September 23, 1952 | 1 |
| 12 | Rocky Marciano | September 23, 1952 — April 27, 1956r | 6 |
| 13 | Floyd Patterson | November 30, 1956 — June 26, 1959 | 4 |
| 14 | Ingemar Johansson | June 26, 1959 — June 20, 1960 | 0 |
| 15 | Floyd Patterson (2) | June 20, 1960 — September 25, 1962 | 2 |
| 16 | Sonny Liston | September 25, 1962 — February 25, 1964 | 1 |
| 17 | Cassius Clay (Muhammad Ali) | February 25, 1964 — June 19, 1964s | 0 |
| 18 | Ernie Terrell | March 5, 1965 — February 6, 1967 | 2 |
| 19 | Muhammad Ali (2) | February 6, 1967 — April 27, 1968s | 1 |
| 20 | Jimmy Ellis | April 27, 1968 — February 16, 1970 | 1 |
| 21 | Joe Frazier | February 16, 1970 — January 22, 1973 | 4 |
| 22 | George Foreman | January 22, 1973 — October 30, 1974 | 2 |
| 23 | Muhammad Ali (3) | October 30, 1974 — February 15, 1978 | 10 |
| 24 | Leon Spinks | February 15, 1978 — September 15, 1978 | 0 |
| 25 | Muhammad Ali (4) | September 15, 1978 — October 18, 1979 | 0 |
| 26 | John Tate | October 20, 1979 — March 31, 1980 | 0 |
| 27 | Mike Weaver | March 31, 1980 — December 10, 1982 | 2 |
| 28 | Michael Dokes | December 10, 1982 — September 23, 1983 | 1 |
| 29 | Gerrie Coetzee | September 23, 1983 — December 1, 1984 | 0 |
| 30 | Greg Page | December 1, 1984 — April 29, 1985 | 0 |
| 31 | Tony Tubbs | April 29, 1985 — January 17, 1986 | 0 |
| 32 | Tim Witherspoon | January 17, 1986 — December 12, 1986 | 1 |
| 33 | James Smith | December 12, 1986 — March 7, 1987 | 0 |
| 34 | Mike Tyson | March 7, 1987 — February 11, 1990 | 8 |
| 35 | James Douglas | February 11, 1990 — October 25, 1990 | 0 |
| 36 | Evander Holyfield | October 25, 1990 — November 13, 1992 | 3 |
| 37 | Riddick Bowe | November 13, 1992 — November 6, 1993 | 2 |
| 38 | Evander Holyfield (2) | November 6, 1993 — April 22, 1994 | 0 |
| 39 | Michael Moorer | April 22, 1994 — November 5, 1994 | 0 |
| 40 | George Foreman (2) | November 5, 1994 — 1995s | 0 |
| 41 | Bruce Seldon | April 8, 1995 — September 7, 1996 | 1 |
| 42 | Mike Tyson (2) | September 7, 1996 — November 9, 1996 | 0 |
| 43 | Evander Holyfield (3) | November 9, 1996 — November 13, 1999 | 4 |
| 44 | Lennox Lewis | November 13, 1999 — April 29, 2000s | 0 |
| 45 | Evander Holyfield (4) | August 12, 2000 — March 3, 2001 | 0 |
| 46 | John Ruiz | March 3, 2001 — March 1, 2003 | 2 |
| 47 | Roy Jones Jr. | March 1, 2003 — February 20, 2004r | 0 |
| 48 | John Ruiz (2) | February 24, 2004 — December 17, 2005 | 3 |
| 49 | Nikolai Valuev | December 17, 2005 — April 14, 2007 | 3 |
| 50 | Ruslan Chagaev | April 14, 2007 — July 5, 2008 – (Was declared "Champion in Recess", then stripped) | 2 |
| 51 | Nikolai Valuev (2) | August 30, 2008 — November 7, 2009 | 1 |
| 52 | David Haye | November 7, 2009 — July 2, 2011 | 2 |
| 53 | Wladimir Klitschko – Super champion | July 2, 2011 — Present | 3 |
| 54 | Aleksander Povetkin - (Regular champion) | August 27, 2011 — Present | 2 |
Read more about this topic: List Of WBA World Champions