Sven Ulric Adalvard Palme (born May 25, died- May 14, 1977) was a Swedish historian and professor at Stockholm University. He was the son of the historian Olof Palme (1884–1918) and Ola Palme (born Tonow) (1888–1982). His historical research was broad, from Swedish Middle Age to modern political history. The political history was his focus, concentrating on political parties, decision-making processes and key actors in these processes. In the 1930s he was active in the conservative political debate. But eventually he distanced himself from the conservative ideas and became closer to the Social Democratic tradition.