Harthama ibn A'yan (; akafa muna Chikumi 816) aive akaberekerwa muKhurasan uye gavhuna weAbbasid Caliphate yekutanga, achishanda pasi pevacaliphs al-Hadi, Harun al-Rashid uye al-Ma'mun. Akaita basa rinokosha mukukunda kwaal-Ma'mun muhondo yevagari vemo yeAbbasid
, asi akaurayiwa paakarayira paakapikisa simba remhuri yeSahlid raitonga dare rake.