Cetina (pronounced [t͡sɛ̌tina]) is a river in southern Croatia. It has a length of 101 km (63 mi) and its basin covers an area of 1,463 km2 (565 sq mi). Cetina descends from an altitude of 385 m at its source to the sea level when it flows into the Adriatic Sea. It is the most water-rich river in Dalmatia.