Qadiani or Qadiyani (qādiyānī in Urdu and Arabic) is a derogatory religious slur used by some South Asian Muslims to refer to the Ahmadi Muslims, primarily in Pakistan. While it is considered pejorative by the Ahmadiyya Muslim Community, it is used in official Pakistani documents. The term itself is a reference to the town of Qadian or Qādiyān, the hometown of Mirza Ghulam Ahmad, whom the Ahmadi Muslims hold to be the promised Messiah and Mahdi.
It is also sometimes used to distinguishLahore Ahmadiyya Movement for the Propagation of Islam (Lahore-based) and the Ahmadiyya Muslim Community (Qadian-based) branches of the Ahmadiyya Movement in Islam, primarily by the Lahoris and other Muslims. While the Lahori continue to be based in Lahore, the Ahmadiyya Muslim Community moved to Lahore in 1947, to Rabwah in 1951 and the United Kingdom in 1984.