Blignaut may refer to:
- Alex Blignaut (1932–2001), racing driver and motor racing team owner from South Africa
- Andy Blignaut (born 1978), Zimbabwean cricketer
- Nicolai Blignaut (born 1985), South African rugby union player
- Pieter Jeremias Blignaut (1841–1909), South African (Boer) civil servant and Acting State President
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