Sveinn Björnsson (27. února 1881 Kodaň, Dánsko – 25. ledna 1952 Reykjavík, Island) byl islandský politik, právník a diplomat, který se stal prvním prezidentem republiky na Islandu v letech 1944–1952.
Sveinn Björnsson was a statesman and diplomat who from 1944 to 1952 served as the first president of the Republic of Iceland. Björnsson was a lawyer at the Supreme Court after 1907 and became a member of the Reykjavík town council in 1912…
Björnsson, Sveinn svān byörnˈsôn [key], 1881–1952, Icelandic diplomat and political leader, first president of Iceland (1944–52). A distinguished lawyer, he was elected to the Althing (Icelandic parliament) for the first time in 1914.
Björn Sveinsson Björnsson (15 October 1909 – 14 April 1998) was the son of Iceland's first president Sveinn Björnsson and was one of about twenty Icelanders who fought for the Nazi regime during World War II.