The term "Welterweight Champion" refers to a titleholder in the sport of boxing or mixed martial arts (MMA) within the welterweight division. This division typically includes fighters who weigh between 140 and 147 pounds (63.5 to 66.7 kg). The champion is recognized for their skill, strength, and ability to compete at a high level against other top fighters in this weight class. Welterweight champions are often celebrated for their exciting matches and technical prowess. Notable champions in boxing include Floyd Mayweather Jr. and Manny Pacquiao, while in MMA, fighters like Georges St-Pierre and Kamaru Usman have made significant impacts in the welterweight category.