Also written Inaki, pronounced exactly the same. In Basque, N and L are palatalized after I. Ñ is used due to Spanish influence, so Inaki should be older than Iñaki.
Iñaki Urdangarin y Liebaert, is a retired handball player, turned entrepreneur, accused of embezzling about 6 million euros in public funds for sporting events since 2004 through his nonprofit foundation, the so-called Nóos case, and of political corruption by using his former title of Duke of Palma as the husband of the Infanta Cristina.
The pronunciation of this name is ee-NYAH-kee. That's as close as I can get, since English doesn't have the "ñ" sound. It's like the Italian "gn". [noted -ed]