Jan O. Henriksen (3 May 1945 – 26 August 2018) was a Norwegian illustrator and editorial cartoonist. Born in Andøya, a self-trained artist, Henriksen worked as illustrator and cartoonist for Adresseavisen from 1966 to 1967, for Fædrelandsvennen from 1967 to 1974, for Aftenposten from 1985 to 1987, and for Adresseavisen from 1987. He illustrated a number of books, including humour books by the signature Tande-P, and his cartoon series Nazismens fremvekst/Norge i krig was published in 1981 and 1982. He died in Trondheim on 26 August 2018, 73 years old.