A religious denomination is a subgroup within a religion that operates under a common name and tradition among other activities.
The term refers to the various Christian denominations (for example, Eastern Orthodox, Catholic, and the many varieties of Protestantism). It is also used to describe the five major branches of Judaism (Karaite Judaism, Orthodox, Conservative, Reform, and Reconstructionist). Within Islam, it can refer to the branches or sects (such as Sunni, Shia), as well as their various subdivisions such as sub-sects, schools of jurisprudence, schools of theology and religious movements.
The world's largest religious denomination is Sunni Islam.
Christian denomination
List of Christian denominations
A Christian denomination is a generic term for a distinct religious body identified by traits such as a common name, structure, leadership and doctrine. Individual bodies, however, may use alternative terms to describe themselves, such as church or fellowship. Divisions between one group and another are defined by doctrine and church authority; issues such as the biblical interpretation, the authority of apostolic succession, eschatology, and papal primacy often separate one denomination from another. Groups of denominations often sharing broadly similar beliefs, practices and historical ties are known as branches of Christianity.
In Hinduism, the major deity or philosophical belief identifies a denomination, which also typically has distinct cultural and religious practices. The major denominations include Shaivism, Shaktism, Vaishnavism and Smartism.
Islamic schools and branches
Historically, Islam was divided into three major sects well known as Sunni, Khawarij and Shi‘ah. Nowadays, Sunnis constitute about 90% of the overall Muslim population, the Shi'ahs are around 10%, while Ibadis, from the Kharijites, have diminished to a level below 0.15%.
Today, many of the Shia sects are extinct. The major surviving Imamah-Muslim Sects are Usulism (with nearly more than 8.