Orthodox

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-paganism or Hinduism

Traditional Christian denominations

 * Eastern Orthodoxy, the world's second largest Christian denomination
 * Oriental Orthodoxy, which does not accept the theological resolutions of the Council of Chalcedon

Modern denominations

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

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
 * 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
 * Modern Orthodox Judaism, is a movement within Orthodox Judaism
 * Kemetic Orthodoxy, an Egyptian neo-pagan religion that intends to reform and restore ancient Egyptian religion
 * Orthodox Bahá'í Faith, a small Baha'i denomination
 * Orthodox Hinduism, a term for Sanātanī
 * Orthodox Islam, generally refers to Sunni Islam
 * Slavic Native Faith or Orthodoxy, a term used by Neo-Slavic pagan religious organizations

Other uses

 * Left-arm orthodox spin, a bowling technique in cricket
 * Orthodox (album), a 2013 album by American rock band Beware of Darkness
 * Orthodox (band), an American metalcore band from Tennessee.
 * Orthodox File Managers, a user interface to work with file systems
 * Orthodox (Jordan), a Jordanian basketball club
 * Orthodox Marxism, the dominant form of Marxist philosophy between the death of Karl Marx and the beginning of World War I
 * Orthodox seed, a seed which may be preserved via drying or freezing
 * Orthodox stance, a way of positioning the feet and hands in combat sports