Kalmar "bantamweight" suna ne da ke nufin nau'in nauyi a cikin wasanni masu fama da su kamar dambe, kickboxing, da kuma gaurayawan Martial Arts (MMA). Musamman, ajin nauyi ne wanda masu fafatawa ke yin awo tsakanin 112 da 118 fam (ko 50.8 da 53.5 kilogiram). Gabaɗaya amfani, kalmar "bantamweight" na iya nufin mutum ko abu mai ƙarami, haske, ko mai laushi.
