Rolf Ingvar Semmingsen (August 13,1908 – May 1, 1979) was a Norwegian civil servant.
He was the son of Martin Semmingsen (1875–1964) and Anne Strand (1874–1961).
Having graduated as cand.jur., he was hired as assistant secretary in the Norwegian Price Directorate (Konkurransetilsynet) in 1940.
In 1946 he was promoted to assistant director under Wilhelm Thagaard.
[2] This Norwegian biographical article related to a government official is a stub.