Koldo Gorostiaga Atxalandabaso is a Spanish Basque university lecturer in law and economics, and politician. He served one term in the European Parliament from 1999 to 2004 as a representative of Batasuna, a Basque nationalist party.
Living mostly in the French Basque Country, Gorostiaga began working for the European Bureau for Lesser-used Languages in 1995, and also became a member of the Basque Country's Economic and Social Council. At the 1999 European Parliament election, Gorostiaga was nominated as Euskal Herritarrok candidate. He was elected to the last seat. ==References==