Pearl Cap (foaled 1928) was a French champion Thoroughbred racehorse who is considered one of her country's greatest racing fillies.

She was trained by Frank Carter, a member of the prominent racing family that began in France with Thomas Carter (1805-1879), who immigrated from Peckleton, Leicestershire in England in 1831 and founded the English Racing Colony in Chantilly, Oise.

Her performances that year earned her France's champion two-year-old filly honors.

In her three-year-old season, the filly again beat her male counterparts in major races.

She finished second to Prince Rose in the Grand International d'Ostende at Hippodrome Wellington in Ostend, Belgium, a race her sire Le Capucin won in 1924.