Floyd Joy Mayweather Jr (an haife Floyd Joy Sinclair ;a ranar 24 ga watan Fabrairu,shekarar 1977) Floyd Mayweather Jr ne zakaran dan wasan naushi na duniya daga kasar Amurka, inda ya buga wasa 50 ba tare da faduwa ba, an masa lakabi da wanda ba'a taba kayarwa ba, ya tsere ma Muhammad Ali mai wasa 61 faduwa 05, da kuma Mike Tyson mai wasa 58 faduwa 06.ƙwararren ɗan damben Ba’amurke ne mai tallata kuma tsohon kwararren ɗan dambe. Ya yi takara tsakanin shekarar 1996 da shekara ta 2015, kuma ya sake dawowa daga yaki a 2017 . A lokacin aikinsa ya lashe manyan lambobin duniya goma sha biyar ciki har da Ring a azuzuwan nauyi biyar, gasar zakarun layi a aji hudu masu nauyi (sau biyu a welterweight ), kuma ya yi ritaya tare da rikodin mara nasara . Kamar yadda wani mai son, Mayweather lashe a samu lambar tagulla a cikin featherweight rabo a shekarar 1996 Olympics, uku Amurka Golden Guanto wasan (a haske flyweight, flyweight, kuma featherweight), da kuma US kasa gasar a featherweight.