Ilısu is belde (town) in Güzelyurt district of Aksaray Province, Turkey. At it is situated on the north of Melendiz stream. The population of the town was 1514 as of 2011. Ilısu is a part of Ihlara Valley a valley famous for historical ruins. There are historical cave houses a Roman bath and a Roman bridge as well as geothermal springs in the town.
