|This article does not cite any sources. (December 2009)|
The lightweight division is over 130 pounds (59 kilograms) and up to 135 pounds (61 kilograms) weight class in the sport of boxing. Notable lightweight boxers include Alexis Argüello, Henry Armstrong, Ken Buchanan, Tony Canzoneri, Pedro Carrasco, Joel Casamayor, Al "Bummy" Davis, Oscar De La Hoya, Roberto Durán, Artur Grigorian, Joe Gans, Benny Leonard, Ray Mancini, Floyd Mayweather Jr., Juan Manuel Marquez, Sugar Shane Mosley, Miguel Ángel González, Carlos Ortiz, Edwin Valero, Pernell Whitaker, and Ike Williams.
|Sanctioning Body||Reign Began||Champion||Record||Defenses|
|WBA||November 21, 2015||Anthony Crolla||30-4-3 (12 KO)||0|
|WBC||December 30, 2014||Jorge Linares||40-3 (27 KO)||2|
|IBF||December 18, 2015||Rances Barthelemy||24-0 (13 KO)||0|
|WBO||July 11, 2015||Terry Flanagan||29-0 (12 KO)||1|
Longest reigning lightweight champions
Below is a list of "longest reigning lightweight champions" career time as champion (for multiple time champions) does not apply.
|Name||Title Reign||Title recognition||Successful defenses|
|1.||Benny Leonard||7 years, 7 months, 17 days||World||7|
|2.||Artur Grigorian||7 years, 6 months, 20 days||WBO||17|
|3.||Jack McAuliffe||6 years, 7 months, 12 days||World||3|
|4.||Roberto Duran||6 years, 7 months, 5 days||WBA||12|
|5.||Ike Williams||6 years, 1 month, 7 days||World||5|
|6.||Joe Gans||6 years, 27 days||World||10|
|7.||Joe Brown (boxer)||5 years, 7 months, 27 days||World||11|
|8.||Miguel Vazquez||4 years, 29 days||IBF||6|
|9.||Sammy Mandel||4 years, 14 days||NBA||2|
|10.||Paul Spadafora||3 years, 10 months||IBF||7|
International Kickboxing Federation (IKF) Lightweight (Pro & Amateur) 127.1 lb - 132 lb or 57.77 kg - 60 kg. Women's divisions also use this weight class, but usually at a lower weight than the men's divisions. In Glory promotion, a lightweight division is up to 70 kg (154 lb).
Mixed martial arts
In MMA, the lightweight division is from 146 lb (66 kg) to 155 lb (70 kg).
Lightweight rowing was a category entered into the Olympic sport, originally due to countries of smaller stature competing with an unfair disadvantage, as rowing favors the taller athlete who has more leverage.
Current Olympic class lightweight events in rowing are a men's lightweight Coxless Four and Double Scull, and a women's lightweight Double Scull.