Arantza del Puerto Astiz (born 8 March 1971 in San Sebastián) is a Spanish former football defender. She played throughout her career for Añorga KKE, with which she won three national championships and three national cups between 1990 and 1996. Del Puerto is the second capped player for the Spanish women's national team to date with 71 caps, and she took part in the 1997 European Championship.