Islam-related slurs

Kāfir (; ) is an Islamic term of Arabic origin used by Muslims to refer to non-Muslims who deny the God in Islam, reject his authority, and do not accept the message of Islam as truth.

thumb|Qizilbash troops of Shah Ismail I. Circa 1647 painting, [[Chehel Sotoun]]

thumb|Théodore Géricault: The Giaour (1820, lithograph; [[Metropolitan Museum of Art, New York)]] thumb|Eugène Delacroix: The Combat of the Giaour and Hassan (1826, oil on canvas; [[Art Institute of Chicago), inspired by Lord Byron's The Giaour]]

Batiniyya () refers to groups that distinguish between an outer, exoteric (zāhir) and an inner, esoteric (bāṭin) meaning in Islamic scriptures.

Takfiri is an Arabic and Islamic term denoting a Muslim who excommunicates one of their coreligionists—i.e., who accuses another Muslim of being an apostate, or , 'one who turns back'.

'''''' () is a polemical term referring to Shia Muslims. It derives from Shia Muslims' rejection of the legitimacy of Abu Bakr (), Umar (), and Uthman () as caliphs, in favor of an Imamate beginning with Ali ibn Abi Talib (), the cousin and son-in-law of the Islamic prophet Muhammad.

thumb|Text from a manuscript of the Chanson de Guillaume: Tresque il vendreit de aurer Tervagant In the Middle Ages, Termagant or Tervagant was the name of a god that some European Christians believed Muslims worshipped. It originates in the eleventh-century Song of Roland.

Zindīq (pl. zanādiqa) is an Islamic pejorative applied to individuals who are considered to hold views or follow practices that are contrary to central Islamic dogma. Zandaqa is the noun describing these views.

Qadiani (, ; ) is a religious slur used to refer to Ahmadi Muslims, primarily in Pakistan. The term originates from Qadian, a small town in northern India, the birthplace of Mirza Ghulam Ahmad, the founder of the Ahmadiyya movement. While it is pejorative to the Ahmadi Muslim Community, it is used in official Pakistani documents.

historical term for Balkan Muslims of any ethnic background

thumb|Abu Bakr (right) hiding in the cave near Jabal Thawr Bakriyya or Bakrism (Arabic: البكرية al-bakriyya, singular adherent and adjective Bakri) is an ambiguous Arabic term that can refer to one of three things. It originally referred to a small 7th-century group of hadith transmitters who promoted sayings about the supposed exalted qualities of Abu Bakr in response to proto-Shiite compilations about the qualities of Ali and his claim to lead all Muslims. This use of the term was employed by al-Nawbakhti, and al-Qummi.