Sandwich (1928–after 1941) was a British Thoroughbred racehorse that won the classic St Leger Stakes at Doncaster Racecourse in 1931, for owner Earl of Rosebery. By 1931, Archibald Primrose, 5th Earl of Rosebery had died, making this a win for his son, Harry Primrose, 6th Earl of Rosebery. Sandwich was a half-brother to Manna, winner of the 1925 Epsom Derby, and as well as his 1931 St Leger success also won the Chester Vase and King Edward VII Stakes.