Stratos Dam, Embankment dam near Stratos, Greece.

Stratos Dam is an embankment dam on the Acheloos River in western Greece. The structure spans roughly 2 kilometers and creates a large reservoir that serves the region with water management and power generation.

Construction took place from 1981 to 1989 as a major step forward in Greek water management and energy infrastructure. The project was part of a broader effort to harness the Acheloos River system for regional needs.

The dam is named after the village of Stratos, which lies just to its west; the reservoir it created is the third artificial lake on the Acheloos, after Kastraki and Kremasta. Its four turbine units supply about 10% of Greece's annual electricity output together with the other Acheloos dams, and it was built entirely by Greek companies.

The dam is visible from nearby roads and sits in open countryside along the river. Visitors can explore the surrounding landscape, though paths can be uneven and weather conditions may change quickly.

Stratos is the third artificial lake on the Acheloos, after Kastraki and Kremasta, and the dam was built entirely by Greek companies as a rockfill embankment. The four turbines are rated at 150 MW in Greek sources and 156.7 MW in English ones; together the Acheloos dams supply about 10% of Greece's annual electricity. WWF expects the Acheloos diversion works to cut output by 274 GWh.