Wiktionary
lehendakari
n. The president of the Basque government.
Wikipedia
Lehendakari
The President of the Basque Government (, ), usually known in English as the Lehendakari (, ) is the head of government of the Basque Autonomous Community. The president leads the executive branch of the regional government.
The current lehendakari is IƱigo Urkullu, of the Basque Nationalist Party.
The Basque noun lehendakari means "president" and can refer to the president of any country, club, association, etc.