Lightweight is a weight class in the sports of boxing, kickboxing, mixed martial arts, and rowing.
The lightweight division is over 130 pounds (59 kilograms) and up to 135 pounds (61.2 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.
Artur Grigorian holds the record for most consecutive title defenses at this division, with 17 defenses of the WBO title.