Kaffir
Kaffir or Kafir may refer to:

Ethnicity and religion
Kafir, a term for a non-Muslims
Kaffir (racial term), an ethnic slur used in South Africa
The Nuristani people, an ethnic group of Pakistan and Afghanistan
Sri Lanka Kaffir people, an ethnic group

Languages
Fanagalo, a Zulu-based pidgin language once referred to as Kitchen Kaffir
Sri Lanka Kaffir language, a creole spoken by that people
Kafiiri or Kafiristani, terms for the Nuristani languages of the Hindu Kush

Places 
Kaffraria or British Kaffraria, a former designation for King William's Town and East London, South Africa
Kafir, Idlib, a village in Syria
Kafiristan, the historic name for the Nuristan Province in Afghanistan
Kaffrine, a city in Senegal

Plants
Kaffir lime, a variety of lime fruit native to Indonesia also known as a makrut lime
Kaffir lily (disambiguation), one of two flowers found in southern Africa:
Clivia miniata
Hesperantha coccinea
Kafir, kaffir or kaffircorn, another name for the grain sorghum
 Kaffir boom (Erythrina lysistemon), a species of tree in the family Fabaceae

Other uses
Kaafir (Pakistani TV series), a 2011 television series
Kaafir (Indian TV series), a 2019 Indian web television series
Kafir harp 
Sunbeam Kaffir, an engine built by the Sunbeam car company
African wildcat, formerly known as the Kaffir cat
Kaffir-D Stone, the alpha form of gypsum (calcium sulphate hemihydrate; (CaSO4)2H2O) used in the manufacture of dentures. 