The current champions in each weight class are listed below, followed by nationality and length of title reign.
HEAVYWEIGHT (200+ lb, 90.7+ kg)
WBA (Super): Wladimir Klitschko, Ukraine – since July 2, 2011
WBA: Alexander Povetkin, Russia – since August 27, 2011
WBC: Vitali Klitschko, Ukraine – since October 11, 2008
IBF: Wladimir Klitschko, Ukraine – since April 22, 2006
WBO: Wladimir Klitschko, Ukraine – since February 23, 2008
CRUISERWEIGHT (200 lb, 90.7 kg)
WBA: Guillermo Jones, Panama - since September 27, 2008
WBC: Krzysztof Wlodarczyk, Poland – since May 15, 2010
IBF: Yoan Pablo Hernandez, Cuba – since October 1, 2011
WBO: Marco Huck, Germany – since August 29, 2009
WBO (interim): Ola Afolabi, Great Britain – since March 3, 2012
LIGHT HEAVYWEIGHT (175 lb, 79.4 kg)
WBA: Beibut Shumenov, Kazakhstan – since January 29, 2010
WBC: Chad Dawson, United States – since April 28, 2012
IBF: Bernard Hopkins, United States - since March 9, 2013
WBO: Nathan Cleverly, Great Britain – since May 18, 2011
SUPER MIDDLEWEIGHT (168 lb, 76.2 kg)
WBA (Super): Andre Ward, United States – since November 21, 2009
WBA: Mikkel Kessler, Denmark - since December 8, 2012
WBA (Interim): Stanyslav Kashtanov, Ukraine - since November 10, 2012
WBC: Vacant
IBF: Carl Froch, Great Britain – since May 26, 2012
WBO: Robert Stieglitz, Germany – since March 23, 2013
MIDDLEWEIGHT (160 lb, 72.6 kg)
WBA: Gennady Golovkin, Kazakhstan – since October 14, 2010
WBA (Interim): Martin Murray, Great Britain - since November 24, 2012
WBC: Sergio Gabriel Martinez, Argentina – since September 15, 2012
IBF: Daniel Geale, Australia – since May 7, 2011
WBO: Peter Quillin, United States – since October 20, 2012
SUPER WELTERWEIGHT (154 lb, 69.9 kg)
WBA (Super): Floyd Mayweather Jnr, United States – since May 5, 2012
WBA: Saul Canelo Alvarez, Mexico - since April 20, 2013
WBC: Saul Canelo Alvarez, Mexico – since March 5, 2011
IBF: Ishe Smith, United States - since February 23, 2013
WBO: Zaurbek Baysangurov, Russia – since October 5, 2011
WELTERWEIGHT (147 lb, 66.7 kg)
WBA: Paul Malignaggi, United States – since April 29, 2012
WBA (Interim): Diego Gabriel Chaves, Argentina – since July 21, 2012
WBC: Floyd Mayweather Jr, United States – since September 17, 2011
IBF: Devon Alexander, United States – since October 20, 2012
WBO: Timothy Bradley, United States – since June 9, 2012
SUPER LIGHTWEIGHT (140 lb, 63.5 kg)
WBA (Super): Danny Garcia, United States – since July 14, 2012
WBA: Khabib Allakhverdiev, Russia - since November 30, 2012
WBC: Danny Garcia, United States – since March 24, 2012
WBC (Interim): Lucas Martin Matthysse, Argentina – since September 8, 2012
IBF: Lamont Peterson, United States –since December 10, 2011
WBO (Super): Juan Manuel Marquez, Mexico - since June 9, 2012
WBO (Interim): Mike Alvarado, United States - since March 30, 2013
LIGHTWEIGHT (135 lb, 61.2 kg)
WBA: Richard Abril, Cuba – since February 26, 2013
WBC: Adrien Broner, United States – since November 17, 2012
IBF: Miguel Vazquez, Mexico – since August 14, 2010
WBO: Ricky Burns, United Kingdom – since March 10, 2012
SUPER FEATHERWEIGHT (130 lb, 59 kg)
WBA (Super): Takashi Uchiyama, Japan – since May 6, 2013
WBA: Vacant
WBC: Takashi Miura, Japan - since April 8, 2013
IBF: Argenis Mendez, Dominican Republic– since March 9, 2013
WBO: Roman Martinez, Puerto Rico – since September 15, 2012
FEATHERWEIGHT (126 lb, 57.2 kg)
WBA (Super): Chris John, Indonesia – since July 23, 2009
WBA: Nicholas Walters, Jamaica - since December 8, 2012
WBC: Abner Mares, Mexico - since May 4, 2013
IBF: Evgeny Gradovich, Russia – since March 1, 2013
WBO: Miguel Angel Garcia, United States – since January 19, 2013
SUPER BANTAMWEIGHT (122 lb, 55.3 kg)
WBA: Guillermo Rigondeaux, Cuba – since January 20, 2012
WBA (Interim): Scott Quigg, Great Britain - since November 24, 2012
WBC: Victor Terrazas, Mexico - since April 20, 2013
IBF: Jonathan Romero, Colombia - since February 16, 2013
WBO: Guillermo Rigondeaux, Cuba - since April 13, 2013
BANTAMWEIGHT (118 lb, 53.5 kg)
WBA (Super): Anselmo Moreno, Panama – since November 16, 2010
WBA: Koki Kameda, Japan – since December 26, 2010
WBC: Shinsuke Yamanaka, Japan – since November 6, 2011
IBF: Jamie McDonnell, Great Britain - since May 11, 2013
WBO: Paulus Ambunda, Namibia– since March 2, 2013
SUPER FLYWEIGHT (115 lb, 52.2 kg)
WBA : Liborio Solis, Venezuela – since May 6, 2013
WBC: Srisaket Sor Rungvisai, Thailand– since May 3, 2013
IBF: Juan Carlos Sanchez Jr, Mexico – since February 11, 2012
WBO: Omar Andres Narvaez, Argentina – since May 15, 2010
FLYWEIGHT (112 lb, 50.8 kg)
WBA (Super): Juan Francisco Estrada, Mexico - since April 6, 2013
WBA: Juan Carlos Reveco, Argentina - since December 4, 2012
WBA (Interim): Kompayak Porpramook, Thailand - since April 26, 2013
WBC: Akira Yaegashi, Japan - since April 8, 2013
IBF: Moruti Mthalane, South Africa – since November 20, 2009
WBO: Juan Francisco Estrada, Mexico - since April 6, 2013
LIGHT FLYWEIGHT (108 lb, 49 kg)
WBA (Super): Roman Gonzalez, Nicaragua – since February 4, 2011
WBA: Kazuto Ioka, Japan - since December 31, 2012
WBA (Interim): Alberto Rossel, Peru – since April 14, 2012
WBC: Adrian Hernandez, Mexico – since October 6, 2012
IBF: John Riel Casimero, Philippines – since July 19, 2012
WBO: Donnie Nietes, Philippines – since October 8, 2011
MINIMUMWEIGHT/STRAWWEIGHT (108 lb, 47.6 kg)
WBA: Ryo Miyazaki, Japan - since December 31, 2012
WBA (Interim): Jesus Silvestre, Mexico – since July 14, 2012
WBC: Xiong Zhao Zhong, China - since November 24, 2012
IBF: Katsunari Takayama, Japan - since March 30, 2013
WBO: Merlito Sabillo, Philippines - since April 10, 2013
