Ayrault is a surname. Notable people with the surname include:
Dan Ayrault (1935–1990), American competition rower and Olympic champion Bob Ayrault (born 1966), former Major League Baseball pitcher Jean-Marc Ayrault (born 1950), prime minister of France from 2012 to 2014 Joe Ayrault (born 1971), former Major League Baseball catcher Theodore Ayrault Dodge (1842–1909), American officer and military historian