The Orthodox Union (abbreviated OU) is one of the largest Orthodox Jewish organizations in the United States. Founded in 1898, the OU supports a network...

Orthodox Union Kosher, known as OU Kosher or OUK, is a kosher certification agency based in New York City. It was founded in 1923 by Abraham Goldstein...

The Union of Orthodox Banner-Bearers (SPKh; Russian: Союз православных хоругвеносцев; СПХ; Soyuz pravoslavnykh khorugvenostsev, SPKh) is a Russian-Serbian...

The Union of Orthodox Rabbis of the United States and Canada (UOR), often called by its Hebrew name, Agudath Harabonim or (in Ashkenazi Hebrew) Agudas...

Eastern Orthodoxy, otherwise known as Eastern Orthodox Christianity or Byzantine Christianity, is one of the three main branches of Chalcedonian Christianity...

hypostatic union) which is held by the Catholic Church and the Eastern Orthodox Church. Calendar of saints (Orthodox Tewahedo) Oriental Orthodox Churches...

The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is the second-largest...

Modern Orthodox Judaism (also Modern Orthodox or Modern Orthodoxy) is a movement within Orthodox Judaism that attempts to synthesize Jewish values and...

natures, called the hypostatic union) which is held by the Catholic Church and the Eastern Orthodox Church. The Oriental Orthodox Churches are known as "non-Chalcedonian"...

the Eastern Orthodox Christians, irrespective of their ethnic background, who reside in the former member republics of the Soviet Union, excluding Georgia...

The Union of Orthodox Synagogues (UOS) is the coordinating body of Orthodox Synagogues in South Africa. The UOS maintains a Beth Din, The Johannesburg...

ultra-Orthodox in English; however, the term "ultra-Orthodox" is considered pejorative by many of its adherents, who prefer terms like strictly Orthodox or...

of them are aligned with far-right elements. Orthodox Peronism also refers to the Peronist trade union faction that split from the “62 organizations"...

in the United States where Orthodox Jews live in significant communities. These are areas that have within them an Orthodox Jewish community in which there...

The Union of Charismatic Orthodox Churches (UCOC) is a predominantly African American and Hispanic/Latino Christian denomination forming part of the Convergence...

The Catholic Church and the Eastern Orthodox Church have been in a state of official schism from one another since the East–West Schism of 1054. This schism...

America is that of the Union of Orthodox Congregations, who use a U inside a circle ("O-U"), symbolising the initials of Orthodox Union. In Britain, commonly...

its authority in the eyes of Orthodox believers after the union with Rome in 1439. In December 1448, the Russian Orthodox Church de facto declared its...

Post. Retrieved April 7, 2018. Luban, Yaakov (2010). "Orthodox Union Kosher Primer". Orthodox Union. Lewis, Hunter (January 23, 2012). "How to Clean Your...

Romanian Orthodox Church joined the movement in Romania. In the Soviet Union, the True Orthodox began in 1927-8 when some Eastern Orthodox Christians...

Soviet Union. In the late 1980s, three Orthodox churches claimed substantial memberships there: the Russian Orthodox Church, the Georgian Orthodox Church...

Retrieved 6 October 2018.) "The Lights of Chanukah: Laws and Customs". Orthodox Union. 9 April 2014. Retrieved 6 October 2018. "Yes, Virginia, Hanukkah Has...

organizations of Orthodox rabbis; it is affiliated with The Union of Orthodox Jewish Congregations of America, more commonly known as the Orthodox Union (OU). It...

affiliated with Chabad, the National Council of Young Israel, or the Orthodox Union. Beth Israel Synagogue, Edmonton Congregation House of Jacob Mikveh...

adopted the Sephardic custom. While the Union of Orthodox Jewish Congregations of America and other Orthodox organizations still maintain that the prohibition...

The Jewish Student Union, or JSU is an organization run by the Orthodox Union's youth group, NCSY. Created in 2002, JSU attempts to create Jewish culture...

Association of Croatian Orthodox Believers (Croatian: Udruga hrvatskih pravoslavnih vjernika), often called Croatian Orthodox Union (Croatian: Hrvatska pravoslavna...

British Orthodox Church (BOC), formerly the Orthodox Church of the British Isles, is an independent Oriental Orthodox church. The British Orthodox Church...

Angamali West Orthodox Diocese Angamaly Orthodox Diocese Kolkata Orthodox Diocese Syriac Orthodox Church Dioceses of the Syriac Orthodox Church Malankara...

Orthodox Marxism is the body of Marxist thought which emerged after the death of Karl Marx and Friedrich Engels in the late 19th century, expressed in...