Ynglism (Russian: Инглии́зм; Ynglist runes: ), institutionally the Ancient Russian Ynglist Church of the Orthodox Old Believers–Ynglings (Древнерусская Инглиистическая Церковь Православных Староверов–Инглингов, Drevnerusskaya Ingliisticheskaya Tserkov' Pravoslavnykh Staroverov–Inglingov), is a direction of Rodnovery formally established in 1992 by Aleksandr Yuryevich Khinevich (b. 1961) in Omsk, Russia, and legally recognised by the Russian state in 1998, although the movement was already in existence in unorganised forms since the 1980s. The adherents of Ynglism call themselves "Orthodox", "Old Believers", "Ynglings" or "Ynglists".
The Ynglist Church was described by some scholars as having a complex and well-defined doctrine and liturgy, an authoritative leading hierarchy, and as focusing on esoteric teachings. The Ynglists regard themselves as preserving the true, orthodox (i.e. in accordance with the universal order, right), religious tradition of the Russians, of all Slavs, and of all white European "Aryans". Other Rodnover groups in Russia are strongly critical of Ynglism; at a veche of Russian Rodnover organisations Ynglist doctrines were formally rejected. In the mid 2000s the church faced judicial prosecutions for ethnic hatred, and Khinevich himself was convicted with probation between 2009 and 2011. After the central organisation in Omsk was dissolved, the movement proliferated into multiple groups in all the regions of Russia, and also in various countries of Europe and North America. The holy writings of Ynglism are the four Slavo-Aryan Vedas.
The term "Ynglism" refers to the Ynglings, the oldest royal kins of Scandinavia, a branch of the early Indo-Europeans or Aryans, whom the Ynglists believe to have originated from the Omsk region of Western Siberia, Russia. According to the Ynglists, the term has cosmological significance, referring to the order of the universe carried by the primordial fiery radiance — the Ynglia, personified as Yngly — emanated by the supreme God, Ramha.