Jiráskovy mlýny, Historic watermill complex in Louny, Czech Republic

Jiráskovy mlýny is a watermill complex straddling both banks of the Ohře River with multiple buildings featuring neo-Renaissance style elements. The site was enlarged over time while maintaining its original grain-processing function.

Louny built the Hasák mill on the left bank of the Ohře in 1469; the Režná and Šejdovna mills on the right bank followed, each with three undershot wheels. After a fire in May 1895, František Jirásek bought the ruins for 81,500 gulden, rebuilt them and merged them under the Režná name, adding a bakery in the Hasák mill. His sons Jaroslav, Josef and Vlastimil took over in 1912; the mills were nationalised in 1947.

The name Hasák, also called Hasačert, goes back to the mill the town of Louny built on the left bank in 1469; Režná and Šejdovna stood opposite. František Jirásek's purchase of the burnt ruins in 1895 for 81,500 gulden gave the complex its present name. The 1936 reinforced-concrete grain silo by builder František Hiek still marks the site.

The mills stand at river kilometre 54 on both banks of the Ohře, reached on foot from Louny's centre. Milling at Režná ended on 31 May 2021, so there are no guided tours; the buildings and the concrete weir, 42.2 m long and 1.85 m high, are seen from the riverbanks and bridge.

The 1936 reinforced-concrete grain silo, added by builder František Hieke, still stands beside the mills. The concrete weir at river kilometre 54, 42.2 m long and 1.85 m high, powered Francis turbines in both mills; the mill chimneys have not survived.