Frossard is a French surname. Notable people with the surname include:
André Frossard (1915–1995), French journalist and writer Charles Auguste Frossard (1807–1875), French general Charles Frossard (bailiff) (1922–2012), Bailiff of Guernsey Christian Frossard, French slalom canoeist Denise Frossard (born 1950), Brazilian judge and politician Edward Frossard (1887–1968), British Anglican priest Louis Frossard, 18th-century French dancer Ludovic-Oscar Frossard (1889–1946), French politician Marie-Renée Frossard, 18th-century French ballet dancer