Maider Unda Gonzalez de Audikana[1] (born 2 July 1977 in Vitoria, Spain, is a Spanish retired female freestyle wrestler.

In the repechage round, after beating Canadian Ohenewa Akuffo she lost to Agnieszka Wieszczek in the bronze medal match.

At the 2012 Summer Olympics, Unda won the bronze medal in women's freestyle wrestling 72 kg.

She lost in the semi-final against Stanka Zlateva but beat Vasilisa Marzaliuk (Belarus) for the bronze medal.

[2] Unda runs a sheep farm in the village of Olaeta in Aramaio producing Idiazabal cheese,[1] which she combined with her career in sports.