Olav Marås (born 11 April 1931 in Sæbø) is a Norwegian politician for the Labour Party.
He was elected to the Norwegian Parliament from Hordaland in 1969, but was not re-elected in 1973. He served as a deputy representative during the terms 1965 - 1969 and 1973 - 1977. From 1973 to 1974, during the second cabinet Bratteli, Marås was appointed State Secretary in the Ministry of Transport.
On the local level he was a member of Sæbø municipality council from 1955 to 1963, serving the last four years as deputy mayor. He then became a member of the executive committee of its successor municipality Radøy from 1963 to 1972, and mayor from 1983 to 1990. From 1969 to 1971 he was also a member of Hordaland county council.