Vegard Sletten (8 May 1907 – 17 December 1984) was a Norwegian newspaper editor. He worked in Stavanger Aftenblad from 1929 to 1945, except for the World War II years during parts of which he was imprisoned, and then in Verdens Gang from 1945. He edited the latter newspaper from 1967 to 1977, and chaired both the Norwegian Union of Journalists and the Norwegian Press Association. Like his father Klaus Sletten he was also a Nynorsk supporter.
Sletten was born in Kristiania as a son of newspaper editor Klaus Daae Sletten (1877–1946) and Margit Bruun (1875–1958). He was a nephew of Jakob Hveding Sletten and a maternal grandson of Christopher Bruun. From Kristiania his family soon moved to Stavanger via Trondhjem and Ålesund. He finished his secondary education in Stavanger in 1925, and studied at the University of Oslo, the University of Paris and the École des hautes études en sciences sociales between 1925 and 1928. He was hired as a journalist in Stavanger Aftenblad in 1929. In 1933 he married Synnøve Erika Gudmundson (1909–2001).
In 1940, Norway was invaded and occupied by Germany as a part of World War II. Nazification attempts of the press soon began, and when a member of the Fascist party Nasjonal Samling was installed in Stavanger Aftenblad in 1941, Sletten quit his job. He then worked part-time as a teacher, as well as in the illegal press. He was arrested in Stavanger in June 1944, and spent time in Grini concentration camp from June 1944 to February 1945. He was then detained in Berg concentration camp until the liberation of Norway, which incidentally took place on his birthday.