Reidar Jørgensen (5 October 1904 – 22 September 1985) was a Norwegian middle distance runner, cross-country skier, botanist and educator.

[4] After that he moved to Trondheim, changed clubs to SK Freidig and took a final national title in the 1500 metres in 1933.

[8] He chaired the Trondheim branch of the Norwegian Trekking Association,[9] and became an honorary member of the organization in 1957.

During the Second World War he participated in the Norwegian resistance movement, and was later active in Norges Forsvarsforening.

He worked as a teacher from 1932 to 1945 and principal from 1945 to 1974 at Gerhard Schøning Upper Secondary School, formerly called Trondhjems borgerlige realskole.