Boxing champions list

Tyson Fury is the WBC heavyweight world titlist and the lineal heavyweight champion. Al Bello/Getty Images

With 17 weight classes in boxing and four major sanctioning bodies that bestow world titles, keeping track of who holds each of the belts can be difficult -- especially when there are sometimes multiple titlists in each organization because of interim and secondary belts.

To make it easier for boxing fans, below is a quick reference chart of who holds each of the titles in the four organizations

To check the top 10 fighters in each division, visit ESPN's divisional rankings.

For a list of the best fighters regardless of weight class, check ESPN's pound-for-pound rankings.

Heavyweight (Unlimited)

WBO: Oleksandr Usyk*

IBF: Oleksandr Usyk

WBA: Oleksandr Usyk

WBC: Tyson Fury

*Zhilei Zhang is the WBO interim heavyweight champion

Cruiserweight (200 lbs.)

WBO: Chris Billam-Smith

IBF: Vacant

WBA: Arsen Goulamirian

WBC: Norair Mikaeljan

Light heavyweight (175 lbs.)

WBO: Artur Beterbiev

IBF: Artur Beterbiev

WBA: Dmitry Bivol

WBC: Artur Beterbiev

Super middleweight (168 lbs.)

WBO: Canelo Alvarez

IBF: Canelo Alvarez

WBA: Canelo Alvarez*

WBC: Canelo Alvarez**

*David Morrell is the WBA "regular" super middleweight champion

**David Benavidez is the WBC interim super middleweight champion

Middleweight (160 lbs.)

WBO: Janibek Alimkhanuly

IBF: Janibek Alimkhanuly

WBA: Erislandy Lara

WBC: Jermall Charlo*

*Carlos Adames is the WBC interim middleweight champion

Junior middleweight (154 lbs.)

WBO: Tim Tszyu

IBF: Vacant

WBA: Jermell Charlo

WBC: Vacant*

*Jermell Charlo is the WBC junior middleweight champion in recess

Welterweight (147 lbs.)

WBO: Terence Crawford

IBF: Jaron Ennis

WBA: Terence Crawford*

WBC: Terence Crawford**

*Eimantas Stanionis is the WBA "regular" welterweight champion

**Mario Barrios is the WBC interim welterweight champion

Junior welterweight (140 lbs.)

WBO: Teofimo Lopez Jr.

IBF: Subriel Matias

WBA: Vacant*

WBC: Devin Haney

*Rolando Romero is the WBA junior welterweight "regular" champion; Ismael Barroso is the WBA interim junior welterweight champion

Lightweight (135 lbs.)

WBO: Vacant

IBF: Vacant

WBA: Vacant*

WBC: Shakur Stevenson

*Gervonta Davis is the WBA "regular" lightweight champion

Junior lightweight (130 lbs.)

WBO: Emanuel Navarrete

IBF: Joe Cordina

WBA: Lamont Roach

WBC: O'Shaquie Foster

Featherweight (126 lbs.)

WBO: Rafael Espinoza

IBF: Luis Alberto Lopez

WBA: Vacant

WBC: Rey Vargas*

*Brandon Figueroa is the WBC interim featherweight champion

Junior featherweight (122 lbs.)

WBO: Naoya Inoue

IBF: Naoya Inoue

WBA: Naoya Inoue

WBC: Naoya Inoue

Bantamweight (118 lbs.)

WBO: Jason Moloney

IBF: Emmanuel Rodriguez

WBA: Takuma Inoue

WBC: Junto Nakatani

Junior bantamweight (115 lbs.)

WBO: Kosei Tanaka

IBF: Fernando Martinez

WBA: Kazuto Ioka

WBC: Juan Francisco Estrada

Flyweight (112 lbs.)

WBO: Jesse Rodriguez

IBF: Jesse Rodriguez

WBA: Seigo Yuri Akui

WBC: Julio Cesar Martinez

Junior flyweight (108 lbs.)

WBO: Jonathan Gonzalez

IBF: Adrian Curiel

WBA: Kenshiro Teraji

WBC: Kenshiro Teraji

Strawweight (105 lbs.)

WBO: Oscar Collazo

IBF: Ginjiro Shigeoka

WBA: Knockout CP Freshmart*

WBC: Yudai Shigeoka

*Erick Rosa is the WBA "regular" strawweight champion