Ivar Kristiansen Hognestad (16 October 1888 - 30 April 1973) was a Norwegian politician for the Labour Party.
He was born in Time.
He was elected to the Norwegian Parliament from Rogaland in 1934, and was re-elected on four occasions.
Hognestad held various positions in Time municipality council in the periods 1919 - 1922, 1928 - 1940 and 1947 - 1952.