Xhosa, formerly spelled Xosa and also known by its local name isiXhosa, is a Nguni language, indigenous to Southern Africa and one of the official languages of South Africa and Zimbabwe. Xhosa is spoken as a first language by approximately 10 million people and as a second language by another 10 million, mostly in South Africa, particularly in Eastern Cape, Western Cape, Northern Cape and Gauteng, and also in parts of Zimbabwe and Lesotho. It has perhaps the heaviest functional load of click consonants in a Bantu language, with one count finding that 10% of basic vocabulary items contained a click.

At least thirty-five languages are spoken in South Africa, twelve of which are official languages of South Africa: Ndebele, Pedi, Sotho, South African Sign Language, Swazi, Tsonga, Tswana, Venda, Afrikaans, Xhosa, Zulu and English, which is the primary language used in parliamentary and state discourse, though all official languages are equal in legal status. In addition, South African Sign Language was recognised as the twelfth official language of South Africa by the National Assembly on 3 May 2023. Unofficial languages are protected under the Constitution of South Africa, though few are mentioned by any name.