(December 14, 1890 – October 14, 1960) a Norwegian author and publishing consultant, born in Nord-Odal.

Sigurd Snake-in-the-Eye or Sigurd Ragnarsson was a semi-legendary Viking warrior and Danish king active from the mid to late 9th century.

Sigurd Ring (Old Norse: Sigurðr Hringr, in some sources merely called HringrNamely, in Lejrekroniken, Gesta Danorum, and the Saga of Orvar-Odd; see Nerman, p. 246-50.)

(Old Norse: Sigurðr Sýr) (died c. 1018) a Norwegian petty king of Ringerike, a region in Buskerud.

Sigurd the Crusader (Old Norse: Sigurðr Jórsalafari, Norwegian: Sigurd Jorsalfare; 1089 – 26 March 1130), also known as Sigurd Magnusson and Sigurd I, was King of Norway from 1103 to 1130.

Sigurd Wongraven (born 28 November 1975), also known as Satyr, is a Norwegian musician who is the vocalist, guitarist, bassist and keyboardist for the black metal band Satyricon.

Russell Harrison Varian (April 24, 1898 – July 28, 1959) and Sigurd Fergus Varian (May 4, 1901 – October 18, 1961) were American brothers who founded one of the earliest high-tech companies in Silicon Valley.

Sigurd Eysteinsson, or Sigurd the Mighty (reigned 875–892Ashley, pp. 440–441), was the second Earl of Orkney—a title bequeathed to Sigurd by his brother Rognvald Eysteinsson.

The Sigurd stones form a group of eight or nine Swedish runic inscriptions (five or six runestones, two natural rocks, and a baptismal font) and one picture stone that depict imagery from the Germanic heroic legend of Sigurd the dragon slayer.

(15 February 1944 – 17 June 2022) a German physicist known for his work on superheavy elements.

Sigurd Hlodvirsson (23 April 1014), popularly known as Sigurd the Stout from the Old Norse Sigurðr digri,Thomson p. 59 was an Earl of Orkney.