List of Famous people with last name Smithson

James Smithson was an English chemist and mineralogist. He published numerous scientific papers for the Royal Society during the late 1700s as well as assisting in the development of calamine, which would eventually be renamed after him as "smithsonite". He was the founding donor of the Smithsonian Institution, which also bears his name.

Carly Sarah Smithson is an Irish soul and pop rock singer, songwriter and actress who was the sixth place finalist on the seventh season of American Idol. In 2001, Smithson released her first studio album for MCA Records called Ultimate High. Smithson was dropped from the record label in 2002. After being introduced to former Evanescence guitarist Ben Moody in early 2009, plans for Smithson's post-Idol solo album were scrapped and instead she became the lead singer of the now defunct gothic metal band We Are the Fallen.

Forrest Custer Smithson was an American athlete, winner of 110 m hurdles at the 1908 Summer Olympics.

Harriet Constance Smithson, most commonly known as Harriet Smithson, who also went by Henrietta Constance Smithson, Harriet Smithson Berlioz, and Miss H.C. Smithson, was an Anglo-Irish Shakespearean actress of the 19th century, best known as the first wife and muse of Hector Berlioz.

Robert Smithson was an American artist known for sculpture and land art who often used drawing and photography in relation to the spatial arts. His work has been internationally exhibited in galleries and museums and is held in public collections including the Museum of Modern Art, New York, the Smithsonian American Art Museum, Solomon R. Guggenheim Museum, New York, the Tate Modern, London, the Whitney Museum of American Art, New York, among others. He was one of the founders of the Land Art movement whose best known work is the Spiral Jetty.