Ernestina Maenza (2 February 1909 – 25 July 1995) was a Spanish alpine skier.
She competed in the women's combined event at the 1936 Winter Olympics with Margot Moles being the first Spanish female to participate in a Winter Olympic Games.She was married with Enrique Herreros mountaineer, humorist, drafter, poster artist and filmmakerand mountaineer, with whom had a child.