Krystyna Hołuj-Radzikowska (5 February 1931, Lwów - 29 November 2006) was a Polish chess Woman Grandmaster (WGM). She was nine times Polish Champion (1951, 1952, 1953, 1955, 1956, 1957, 1959, 1966, and 1969).
Krystyna tied for 15-16th at the Moscow 1955 Candidates Tournament which was won by Olga Rubtsova. She tied for 7-8th at the Ohrid 1971 Candidates Tournament won by Nana Alexandria.
She played for Poland five times in the Women's Chess Olympiads:
Krystyna won two individual medals: gold (Emmen 1957) and bronze (Skopje 1972). She was awarded the Woman International Master (WIM) title in 1955 and the WGM title in 1984.