Burykhia is a Precambrian fossil genus from the White Sea region of Russia dating to 555 million years ago. It is considered of Ascidian affinity, due to the sac-like morphology and gill bag-like regularly perforated bands: if so, it could be the oldest ascidian fossil known as of its publication in 2012. It is possibly related to the younger Ausia, another putative ascidian from the Vendian biota. In the case of Burykhia, the narrow longitudinal vessels support affinity with the suborder Phlebobranchia.
Burykhia does not appear to have been colonial.