Nannestad is a surname. Notable people with the surname include:
Elizabeth Nannestad (born 1956), New Zealand poet Frederik Nannestad (1693–1774), Norwegian theologian, author, and bishop Katrina Nannestad, Australian children's writer Mathias Bonsach Krogh Nannestad (1815–1878), Norwegian civil servant and politician Rolf Nannestad (1887–1969), Norwegian actor