Tortoiseshell can refer to: tortoiseshell material, made primarily from the shell of the Hawksbill turtle a Tortoiseshell cat a pattern used in clothing and jewellery the Small Tortoiseshell, a European butterfly the California Tortoiseshell, a North American butterfly "Tortoiseshell", a song by The Boo Radleys which appeared on their EP Every Heaven… (More on Tortoiseshell)