毕尔巴鄂竞技（Athletic Club de Bilbao）是一家位于西班牙北部巴斯克自治区比斯开省毕尔巴鄂的足球俱乐部，成立于1898年，是西班牙成立第二早的足球俱乐部。俱乐部是西班牙足球甲级联赛的创赛成员，自1928年以来从未降级。同时拥有此项荣誉的只有皇家马德里和巴塞罗那。毕尔巴鄂竞技俱乐部是西班牙历史上最成功的足球俱乐部之一，获得过8次西甲冠军，24次西班牙国王杯冠军和2次西班牙超级杯冠军，是西甲总成绩第四好的俱乐部，仅次于皇家马德里、巴塞罗那和马德里竞技。俱乐部只使用巴斯克球员。

Athletic Club; (Basque:Athletic Kluba), also commonly known as Athletic Club de Bilbao; (Basque:Bilboko Athletic Kluba), is a professional football club, based in Bilbao, Basque Country, Spain.

They are known as Los Leones (The Lions) because their stadium was built near a church called San Mamés (Saint Mammes). Mammes was a semi-legendary early Christian thrown to the lions by the Romans. Mammes pacified the lions and was later made a saint.