Sigurður
Sigurður or Sigurdur may refer to:
- Sigurður Þorvaldsson (born 1980), an Icelandic professional basketball player
- Sigurður Bragason (born 1954), an Icelandic baritone
- Sigurður Breiðfjörð (1798–1846), an Icelandic poet
- Sigurður Eggerz (1875–1945), Prime Minister of Iceland from 1914 to 1915 and from 1922 to 1924
- Sigurður Grétarsson (born 1962), a former Icelandic footballer who played as a striker
- Sigurdur Helgason (airline executive) (1921–2009), an innovator in low-cost airlines
- Sigurdur Helgason (mathematician) (born 1927) researcher in integral geometry and symmetric spaces
- Sigurður Jónsson (born 1966) also known as Siggi Jónsson, an Icelandic footballer
- Sigurður Kári Kristjánsson (born 1973), an Icelandic Member of Parliament for the Independence Party
- Sigurður Nordal (1886–1974), an Icelandic scholar, writer, and poet
- Sigurdur Thorarinsson (1912–1983), an Icelandic geologist, volcanologist, glaciologist, professor and lyricist