Eusebes (Greek: Εὐσεβής), meaning "the Pious", was an epithet given to many Hellenistic monarchs:

    Antiochus IX Eusebes, Seleucid King
    Antiochus X Eusebes Philopator, Seleucid King
    Ariarathes IV Eusebes, King of Cappadocia
    Ariarathes V Eusebes Philopator, King of Cappadocia
    Ariarathes IX Eusebes Philopator, King of Cappadocia
    Ariarathes X Eusebes Philadelphos, King of Cappadocia
    Ariobarzanes III Eusebes Philorhomaios, King of Cappadocia