Orthodox, Orthodoxy, or Orthodoxism may refer to:

Religion

Orthodoxy Orthodoxy (from Greek: ) is adherence to correct or accepted creeds, especially in religion. Orthodoxy within Christianity refers to acceptance of the doctrines defined by various creeds and ecumenical councils in Antiquity, but different Churc ...

, adherence to accepted norms, more specifically adherence to creeds, especially within Christianity and Judaism, but also less commonly in non-Abrahamic religions like Neo-paganism or Hinduism

Christian

Traditional Christian denominations

* Eastern Orthodox Church, the world's second largest Christian church, that accepts seven Ecumenical Councils * Oriental Orthodox Churches, a Christian communion that accepts three Ecumenical Councils

Modern denominations

* True Orthodox Churches, also called Old Calendarists, a movement that separated from the mainstream Eastern Orthodox Church in the 1920s over issues of ecumenism and calendar reform * Reformed Orthodoxy (16th–18th century), a systematized, institutionalized and codified Reformed theology * Neo-orthodoxy, a theological position also known as ''dialectical theology'' * Paleo-orthodoxy, (20th–21st century), a movement in the United States focusing on the consensus among the ecumenical councils and church fathers * Communion of Western Orthodox Churches a communion of Christian churches of Orthodox tradition adhering to customs of western Christianity * Lutheran orthodoxy, an era in the history of Lutheranism which began in 1580 from the writing of the ''Book of Concord'' * Orthodox Presbyterian Church, a confessional Presbyterian denomination located primarily in the northern United States

Academic term

* Proto-orthodox Christianity, a term coined by New Testament scholar Bart D. Ehrman to describe the Early Christian movement which was the precursor of Christian orthodoxy

Non-Christian

* Orthodox Judaism, a branch of Judaism **

Modern Orthodox Judaism Modern Orthodox Judaism (also Modern Orthodox or Modern Orthodoxy) is a movement within Orthodox Judaism that attempts to synthesize Jewish values and the observance of Jewish law with the secular, modern world. Modern Orthodoxy draws on sever ...

, is a movement within Orthodox Judaism ** Haredi Judaism, groups within Orthodox Judaism that reject modern secular culture *** Hasidic Judaism, a sub-group within Haredi Judaism noted for its religious conservatism and, typically, social seclusion * Orthodox Islam, generally refers to Sunni Islam *

Orthodox Hinduism Orthodox, Orthodoxy, or Orthodoxism may refer to: Religion * Orthodoxy, adherence to accepted norms, more specifically adherence to creeds, especially within Christianity and Judaism, but also less commonly in non-Abrahamic religions like Neo-pag ...

, a term for Sanātanī * Orthodox Bahá'í Faith, a small Baha'i denomination * Kemetic Orthodoxy, an Egyptian neo-pagan religion that intends to reform and restore ancient Egyptian religion * Slavic Native Faith or Rodovery Orthodoxy, a term used by Neo-Slavic pagan religious organizations

Other uses

Left-arm orthodox spin Left-arm orthodox spin, Left-arm off spin also known as slow left-arm orthodox spin bowling, is a type of Finger spin, left-arm finger spin bowling (cricket), bowling in the sport of cricket. Left-arm orthodox spin is bowled by a left-arm bow ...

, a bowling technique in cricket * ''Orthodox'' (album), a 2013 album by American rock band Beware of Darkness *

Orthodox (Jordan) Orthodox Club ( ar, النادي الأرثوذكسي), also known simply as Orthodox or Orthodox Amman, is a multi-sports club based in Amman. They are mainly known for their basketball team. The team was established in 1952 to compete in the Jor ...

, a Jordanian basketball club *

Orthodox File Managers A file manager or file browser is a computer program that provides a user interface to manage files and folders. The most common operations performed on files or groups of files include creating, opening (e.g. viewing, playing, editing or pr ...

, a user interface to work with file systems *

Orthodox Marxism Orthodox Marxism is the body of Marxist thought that emerged after the death of Karl Marx (1818–1883) and which became the official philosophy of the majority of the socialist movement as represented in the Second International until the Firs ...

, the dominant form of Marxist philosophy between the death of Karl Marx and the beginning of World War I *

Orthodox seed Orthodox seeds are seeds which will survive drying and/or freezing during ex-situ conservation, as opposed to recalcitrant seeds, which will not. According to information from the U.S. Department of Agriculture, there is variation in the ability of ...

, a seed which may be preserved via drying or freezing * Orthodox stance, a way of positioning the feet and hands in combat sports