Jon Lilletun (23 October 1945 – 21 August 2006) was a Norwegian politician active in the Christian Democratic Party.
After his mandatory 8-year primary education, Lilletun's family was unable to finance attendance at a higher level of school with an academic track.
He was subsequently convicted of negligence in his accounting practices and sentenced to a 55-day prison term, which he served.
He attributed this experience with a new outlook on life, and from 1975 to 1988 he worked for the municipality of Vennesla on issues related to youth.
Lilletun was the Minister of Education, Research and Church Affairs 1997-2000, in the first cabinet of Kjell Magne Bondevik.