The Order of the Brothers of the Blessed Virgin Mary of Mount Carmel, known as the Carmelites or sometimes by synecdoche known simply as Carmel, is a mendicant order in the Roman Catholic Church for both men and women. Historical records about its origin remain uncertain; it was probably founded in the 12th century on Mount Carmel in the Crusader States.

Mendicant orders are, primarily, certain Roman Catholic religious orders that have adopted for their male members a lifestyle of poverty, traveling, and living in urban areas for purposes of preaching, evangelization, and ministry, especially to the poor. At their foundation these orders rejected the previously established monastic model. This model prescribed living in one stable, isolated community where members worked at a trade and owned property in common, including land, buildings and other wealth. By contrast, the mendicants avoided owning property at all, did not work at a trade, and embraced a poor, often itinerant lifestyle. They depended for their survival on the goodwill of the people to whom they preached. The members of these orders are not called monks but friars.