Afrikaner nationalism (Afrikaans: Afrikanernasionalisme) is a nationalistic political ideology created by Afrikaners residing in Southern Africa during the Victorian era. The ideology was developed in response to the significant events in Afrikaner history such as the Great Trek, the First and Second Boer Wars (and the resulting anti-British sentiment that developed among Afrikaners) and opposition to South Africa's entry into World War I.

According to historian T. Dunbar Moodie, Afrikaner nationalism could be described as a civil religion that drew upon the Afrikaner people's history, the defense of the Afrikaans language, decolonisation, republicanism, and Afrikaner Calvinism. A major proponent of the ideology was the Broederbond secret society and the National Party that ruled the country from 1948 to 1994. Other Afrikaner nationalist organizations were the Federation of Afrikaans Cultural Organisations (Afrikaans: Federasie van Afrikaanse Kultuurvereniginge, FAK), the Institute for Christian National Education, and the White Workers' Protection Association.