Svetlana Kachuk-Frolova, also written as Svetlana Katsjoek-Frolova (Russian: Светлана Качук; born July 1957), is a former Soviet long track speed skater, who was active in the 1970s and 1980s. Kachuk represented her nation twice at the World Allround Speed Skating Championships for Women in 1981, finishing 8th overall and in 1983, finishing 5th overall. She competed at the European Speed Skating Championships for Women in 1981 (7th), 1982 (11th), 1983 (6th) and 1984 (9th). She also competed at other international competitions, including at ISU Speed Skating World Cups.