Dunning is a surname. Notable people with the surname include:
Brian Dunning (author) (born 1965), host of Skeptoid podcastCharles Avery Dunning, Canadian politicianCharles Dunning (rugby) (died 1955), rugby league playerChester Dunning, Texas historian and specialist in Russian studiesDarren Dunning, English footballerDavid Dunning, American social psychologistDebbe Dunning, American actressEdwin Harris Dunning, British pilot, first to land an aircraft on a shipEric Dunning, sociologistGeorge Dunning, British animatorHenry Dunning Macleod (1821–1902), Scottish economistHenry Dunning Moore (1817–1887), American politicianJack Dunning, New Zealand cricketerJohn Dunning (disambiguation), several people includingJohn Dunning, 1st Baron Ashburton, English politician of the eighteenth centuryJohn Dunning (film editor), American Academy Award-winning film editorJohn H. Dunning, British economist (June 26, 1927 - January 29, 2009)John R. Dunning, American physicistMatt Dunning (born 1978), Canadian rugby player who plays for AustraliaNick Dunning (born 1959), English actorParis C. Dunning, governor of IndianaPhilo Dunning, American politicianSteve Dunning, a former American baseball playerThomas Dunning (1799–1873), English trade unionistWilliam Archibald Dunning (1857-1922), historian for whom the Dunning School of Reconstruction historiography is named