The Hasan Ugurlu Dam is a rock-fill dam for hydro power purposes, located on the River Yesilırmak 23 km south of Carsamba town and 25 km east of Samsun in northern Turkey. Originally, it was named the Ayvacık Dam. Completed in 1979, it generates 4x125=500 MW of power giving an annual electricity production of 1,217 GWh.
Hasan Ugurlu was an engineer, who died together with his wife following an accident while working at this dam's project. His wife’s name Suat Uğurlu is given to another dam project 24 km downstream of Hasan Uğurlu Dam at the same times.