Sven Sønsteby (20 May 1933 – 5 May 2014) was a Norwegian illustrator. He was born in Oslo. He was assigned as illustrator for the newspaper Aftenposten from the 1950s, and for the newspaper's weekly supplement A-magasinet from 1963. From 1956 he also delivered works to the London-based satirical magazine Punch. He died in Kristiansand on 5 May 2014.