Heroön

thumb|right|The northwest heroön at Sagalassos, Turkey

A heroön or heroon (plural heroa) (; , pl. ), also Latinized as heroum, is a shrine dedicated to an ancient Greek or Roman hero and used for the commemoration or cult worship of the hero. They were often erected over their supposed tomb or cenotaph. They were erected from the time of archaic Greece to the Augustan Roman period, and as far afield as Ai-Khanoum in Afghanistan.