Diego Ramírez de Fuenleal (1459–1537) (also known as Diego Ramírez de Haro, Diego Ramírez de Villaescusa, or Diego Ramírez de Arellano) was a Roman Catholic prelate who served as Bishop of Cuenca (1518–1537), Bishop of Málaga (1500–1518), and Bishop of Astorga (1498–1500).