Kaare Steel Groos (26 October 1917 - 20 February 1994) is a Norwegian politician for the Conservative Party.
He was born in Grimstad.
He was elected to the Norwegian Parliament from Vest-Agder in 1958, but was not re-elected in 1961.
Groos was involved in local politics in Kristiansand from 1947 to 1959, serving as deputy mayor in the period 1955 - 1957. He chaired the local party chapter from 1948 to 1949.
Outside politics he worked as a jurist, having graduated as cand.jur. in 1941. He was also active in scouting as well as freemasonry.