Wason is a surname of Scottish origin. Notable people with this name include: Betty Wason, American news correspondent Cathcart Wason, Scottish farmer and politician Edward Hills Wason, American politician from New Hampshire Eugene Wason, Scottish lawyer and politician

Peter Cathcart Wason, British psychologist, inventor of Wason selection task Rigby Wason, Scottish lawyer and politician Robert Wason (Maryland politician), American politician from Maryland Robert Alexander Wason, American writer of Western novels Robert Wason Jr., American politician from Wisconsin Sandys Wason, English clergyman and writer Wendy Wason (active from 1997), Scottish writer, comedian and actress Wason Renteria, Colombian footballer in Brazil

See also Wason Manufacturing Company, an American manufacturer of railway carriages and streetcars Wason-Springfield Steam Power Blocks, a historic site in Massachusetts