The IBF Lightweight Championship is a professional boxing title awarded by the International Boxing Federation (IBF). It is contested in the lightweight division, which includes fighters weighing up to 135 pounds (61.2 kg). The championship is recognized globally and features some of the best boxers in the sport. To win the IBF Lightweight Championship, a boxer must compete against the reigning champion and emerge victorious. The title can change hands through various bouts, and fighters often aim to unify their titles by winning championships from other organizations, such as the WBC or WBA.