Promising Lead (foaled 6 March 2004) is a British Thoroughbred racehorse and broodmare. She did not race until she was three years old in 2017 when she won a maiden race on her debut and went on to win the Upavon Fillies' Stakes before being narrowly beaten in the Group 1 Prix de l'Opéra. In the following year she won the Middleton Stakes and the Pretty Polly Stakes on her only two starts. As a broodmare she produced several minor winners.