Banassa (foaled 1950) was a French Thoroughbred racehorse bred and raced by Julien Décrion.
Named for an ancient Roman village in Morocco, she was sired by Décrion's multiple race winner Un Gaillard and out of his mare, Fatou Gaye.
Banassa was trained by William Head, a descendant of the founders of the English Racing Colony at Chantilly.
At Longchamp Racecourse Banassa won the Prix du Prince d'Orange, a prep race for the Prix de l'Arc de Triomphe in which she finished second to Sica Boy.
Racing at age five, Banassa's best result in 1955 was a win in the Prix Jean Prat.