Smeaton also Smeton or Smieton is a surname. Notable people with the surname include:
Alan Smeaton, Irish author and academic
Bruce Smeaton, Australian composer
Cooper Smeaton, Canadian ice hockey referee and coach
George Smeaton (footballer) (1917–1978), Australian footballer
George Smeaton (theologian) (1814–1889), Scottish theologian
John Smeaton (1724–1792), English civil engineer
John Smeaton (umpire), Australian cricket umpire
John Smeaton (born 1976), Scottish baggage handler who assisted police during the 2007 Glasgow International Airport attack Mark Smeaton, English alleged royal adulterer Thomas Smeaton, also Thomas Smeton or Smieton, (1536–1583) a Scottish minister and Principal of Glasgow University Thomas Drury Smeaton (c. 1831–1908), banker and amateur scientist in South Australia Thomas Hyland Smeaton (c. 1857–1927), South Australian politician William Henry Oliphant Smeaton (1856–1914) Scottish writer