Ghislaine Barnay (born 8 October 1945 in Fort-de-France, Martinique) is a former French athlete who specialises in the women's high jump. Barnay competed at the 1968 Summer Olympics.
Ghislaine Barnay won three French National Athletic titles in the High Jump, in 1967, 1968, and 1969. She bettered four times the , jumping successively 1.73 m, 1.74 m and 1.76 m in 1968, then 1.80 m in 1969.
She participated in the 1968 Olympic Games at Mexico, and placed ninth in the final with a jump of 1.71m.
She married Roger Bambuck in 1974.