Isla Cardonosa Este is an island in the Gulf of California east of the Baja California Peninsula. It is a satellite of Isla Partida.The island is uninhabited.
Isla Cardonosa Este has three species of reptile, including Aspidoscelis tigris (Tiger Whiptail), Phyllodactylus partidus (Isla Partida Norte Leaf-Toed Gecko), and Uta stansburiana (Common Side-blotched Lizard).