Axion estin (Greek: Ἄξιόν ἐστίν, Church Slavonic: Достóйно éсть, romanized: Dostóino yesť), or It is Truly Meet, is a pair of hymns to the Virgin Mary used in the Divine Liturgies of the Eastern Orthodox and Byzantine Catholic churches, consisting of a magnification and a theotokion.

Axion estin is also the name of type of icon of the Theotokos, also known as the Eleousa type, after the icon in front of which, according to tradition, the hymn was revealed in the late 10th century, an elder and his disciple lived in a cell on Mount Athos. The icon is currently kept in the Protaton in Karyes.