| Iñaki Antigüedad | |
| Office1: | Leader of Amaiur |
| Term Start1: | 27 September 2011 |
| Office2: | Member of the Congress of Deputies |
| Term Start2: | 20 November 2011 |
| Term End2: | 16 May 2012 |
| Constituency2: | Vizcaya |
| Birth Date: | 1955 |
| Profession: | Geologist |
Iñaki Antigüedad Auzmendi (born 1955, Bilbao) is a Basque geologist and politician. He is professor of hydrogeology at the University of the Basque Country, and leader of Amaiur.[1]
Following the strong performance of Amaiur in the 2011 Spanish general election, Antigüedad is leading a campaign to hold a referendum on Basque independence.[2]