Olav Sigurd Carlsen (7 September 1930 – 14 June 2013) was a Norwegian politician for the Labour Party.
In May 1972, during Bratteli's First Cabinet, Carlsen was appointed State Secretary in the Ministry of the Environment.
He served as a deputy representative to the Parliament of Norway from Akershus during the term 1973–1977.
He joined the Norwegian Pollution Control Authority until retirement.
This article about a Norwegian politician born in the 1930s is a stub.