Guignard is a surname. Notable people with the surname include:
Alberto da Veiga Guignard (1896–1962), Brazilian artist Alexis Guignard, comte de Saint-Priest (1805–1851), French diplomat and historian André Guignard, Swiss engineer initially educated as a watchmaker Armand Charles Emmanuel Guignard, comte de Saint-Priest (1782–1863), French aristocrat Charlène Guignard (born 1989), French-Italian ice dancer Christelle Guignard (born 1962), retired French alpine skier Emmanuel Louis Marie Guignard, vicomte de Saint-Priest (1789–1881), French politician and diplomat during the Bourbon Restoration Eric J. Guignard (born 1975), American author, anthologist, and publisher François-Emmanuel Guignard, comte de Saint-Priest (1735–1821), French politician and diplomat during the Ancien Régime and French Revolution Guillaume Emmanuel Guignard, vicomte de Saint-Priest (1776–1814), French émigré general who fought in the Russian army Jane Bruce Guignard (1876–1963), American physician, suffragist Léon Guignard (1852–1928), French botanist and pharmacist Jazz Guignard, popular Haitian jazz musician in the 1930s
See also Château Lamothe-Guignard, sweet white wine Guignard University of Art of Minas Gerais, university of fine arts in Brazil Gruinard Island, an island of the Inner Hebrides in northwestern Scotland