Rolf Otto Andvord (31 October 1890 – 8 March 1976) was a Norwegian jurist and diplomat.
He was born in Sør-Aurdal as a son of Kristian Andvord (1855–1934), a chief physician, and Ebba Blomstedt (1860–1953). He was a nephew of ship-owner Rolf Andvord. He was married to the banker's daughter Ingrid Anna Kristina Sten from 1930 to 1936. His daughter Ingegjerd married the business magnate Harald Løvenskiold.
Upon finishing his secondary education in 1909, he enrolled in law studies in 1910 and graduated with a cand.jur. degree in 1915. He thereupon started working for the Norwegian Ministry of Foreign Affairs. In 1921 he became chargé d'affaires at the Norwegian legation in Copenhagen, and soon after secretary at the Norwegian legation in Paris, and he was also assisting secretary in the Ministry of Foreign Affairs and worked at the Norwegian legation in London. From 1935 he served as ambassador to Argentina, with side accreditations to Bolivia, Chile, Paraguay, Peru and Uruguay. He also served as a consul-general in Buenos Aires. Before the war he also took part in several League of Nations meetings.
In 1941 he was sent to the Soviet Union, with a side mission in Iran. In 1942 he was given the rank of ambassador to the Soviet Union. From 1946 to 1948 he was the permanent under-secretary of state (utenriksråd) in the Ministry of Foreign Affairs, from 1948 to 1958 he was the Norwegian ambassador to France and from 1958 to 1961 in Spain.