Başak is a village in İdil District, in Şırnak Province, Türkiye. Başak lies at 835 m above sea level, 9.7 km from the Zagros mountains. It has 142 inhabitants. The nearest city is İdil, 15.8 km to the east. Among the landmarks around are Mor Gabriel Monastery (16.2 km), Ilısu Dam (22 km) and Boncuklu Tarla (22 km).

Also written Başakköy.