Olaf Erling Kortner (10 May 1920 – 26 January 1998) was a Norwegian politician for the Liberal Party.
He was born in Skien.
From 1948 to 1950 he was the leader of the Young Liberals of Norway, the youth wing of the Liberal Party.
He was a member of Strinda municipality council in the period 1951–1955. From August to September 1963 he served as the Minister of Education and Church Affairs during the short-lived centre-right cabinet of John Lyng.
He served in the position of deputy representative to the Norwegian Parliament from Oslo during the terms 1965–1969 and 1969–1973. During parts of these terms, from 1965 to 1970, he met as a regular representative for Helge Seip while he was appointed to the cabinet Borten.
A cand.philol. by education (1948), he worked as a teacher in Strinda and Oslo from 1950 to 1970. From 1971 to 1990 he headed the school administration in Akershus.
| Preceded by Helge Rognlien |
Chairman of the Young Liberals of Norway 1948–1950 |
Succeeded by Jon Ola Norbom |
| Preceded by Helge Sivertsen |
Minister of Education and Church Affairs (Norway) August 1963–September 1963 |
Succeeded by Helge Sivertsen |