Kristian Sundtoft (11 August 1937 – 2 January 2015) was a Norwegian politician for the Conservative Party. He was born in Åmli, but moved to Lillesand. He started his political career in Lillesand municipal council in 1964. He became mayor of Lillesand for eight years as well as county mayor of Aust-Agder in 1976. He served as a deputy representative to the Parliament of Norway from Aust-Agder during the terms 1965–1969, 1981–1985 and 1993–1997. In total he served during 30 days of parliamentary session. From 1989 to 1995 he chaired Aust-Agder Conservative Party, but he changed allegiance to the Liberal Party which he also represented in the municipal council.