Smeaton also Smeton or Smieton is a surname. Notable people with the surname include:
Professor Alan Smeaton, Irish author and academic
Bruce Smeaton, Australian composer
Cooper Smeaton, Canadian professional ice hockey referee and coach
George Smeaton (footballer) (1917–1978), Australian rules footballer
George Smeaton (theologian) (1814–1889), Scottish theologian
John Smeaton (1724–1792), English civil engineer
John Smeaton (umpire) Australian cricket umpire
Marc Smeaton, English alleged royal adulterer
John Smeaton (born 1976), a Scottish baggage handler who assisted police during the 2007 Glasgow International Airport attack.
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, also known as Oliphant Smeaton
