Xwedodah (Persian: خویدوده‎; khwēdōdah; xᵛae¯tuuadaθa) is a spiritually-influenced style of consanguine marriage assumed to have been historically practiced in Zoroastrianism before the Muslim conquest of Persia. Such marriages are recorded as having been inspired by Zoroastrian cosmogony and considered pious though little academic and religious consensus has been established as to the extent of the practice of Xwedodah outside of the aristocracy and clergy of the Sasanian Empire. In modern Zoroastrianism it is near non-existent, having been noted to have disappeared as an extant practice by the 11th century AD.