Orthodox

Orthodox, Orthodoxy, or Orthodoxism may refer to:

Religion

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

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
Oriental Orthodox Churches, a Christian communion that accepts three Ecumenical Councils
Eastern Orthodox Church, a Christian church that accepts seven Ecumenical Councils
- True Orthodoxy, 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, a movement in Christianity aimed at upholding the historic teachings of the Church
Communion of Western Orthodox Churches, a communion of Christian churches of Orthodox tradition distinguished by its adherence to the liturgical and spiritual 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

Orthodox Judaism, a branch of Judaism
- Modern Orthodox Judaism, 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 theist is noted for its religious conservatism and social seclusion
Orthodox Islam, generally refers to Sunni Islam
Orthodox Hinduism, 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

Left-arm orthodox spin, a bowling technique in cricket
Orthodox (album), a 2013 album by American rock band Beware of Darkness
Orthodox (Jordan), a Jordanian basketball club
Orthodox File Managers, a user interface to work with file systems
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