Çeşməbasar (also, Cheshmabasar and Cheshmasara) is a village and municipality in the Babek District of Nakhchivan, Azerbaijan.

It is located in the left side of the Nakhchivan-Ordubad highway, 8 km from the district center, on the plain.

There are secondary school, club, library and mosque in the village.

Local residents say that the actual name of the village was Çeşməsara (Cheshmasara).

Made from the words of Çeşmə (spring) and sara (net, pure), this geographical name means as "pure water" and explained by the fact that in the past, the surrounding area were many carbonate springs.