Orthodox

Orthodox may refer to:

Orthodoxy is adherence to accepted norms, more specifically to creeds, especially in Christianity
Eastern Orthodox Church, a Christian church that accepts seven Ecumenical Councils
Oriental Orthodoxy, a Christian communion that accepts three Ecumenical Councils
Paleo-orthodoxy, a movement in Christianity aimed at upholding the historic teachings of the Church
Lutheran orthodoxy
Orthodox Judaism, a branch of Judaism
Orthodox Bahá'í Faith, a small Baha'i denomination
Orthodox Hinduism, a term for Sanātanī

Other meanings

Orthodox Marxism, the dominant form of Marxist philosophy between the death of Karl Marx and the beginning of World War I
Orthodox (album), 2013
Orthodox (Jordan), Jordanian basketball club
Orthodox File Managers, a user interface to work with file systems
Orthodox seed, a seed which may be preserved via drying or freezing
Left-arm orthodox spin, a bowling technique in cricket
Orthodox stance, a way of positioning the feet and hands in combat sports
Orthodoxy (book), a 1908 book by G. K. Chesterton