Koroglaš monastery, Medieval Orthodox monastery near Miloševo, Serbia.

Koroglaš is a ruined monastery near Miloševo, 6 km northwest of Negotin. Its single-nave church has a three-sided apse outside and a semicircular, half-dome-vaulted apse inside, covered by a two-slope roof added in 20th-century conservation works. It is built of local dressed stone with red decorative circles and crosses and lime mortar, and its exterior is adorned with niches ending in semi-arches.

No written records of the monastery survive, and neither its founder nor its patron saint is known. Stylistic analysis places the church in the Moravian style of the 14th or early 15th century. Romanian tradition links it to Mircea the Elder, who took over Timok lands after the Bulgarian prince Ivan Stratsimir was captured by the Ottomans and executed at Bursa in 1396. Conservation work was carried out in 1975 and 1976.

Local residents gather at the ruined church on Spasovdan and Đurđevdan, though the monastery's original dedication is unknown. Romanian Timoc tradition links its founding to Mircea the Elder after the Battle of Rovine in 1395, and in 2005 the Federation of Romanians in Serbia planned a memorial service there for the fallen, which Serbian police stopped.

The site sits on a hillside outside the village of Miloševo and is accessible on foot or by car, with parking available nearby. Visiting works best on dry days, as the ground across the grounds can be uneven.

Local tradition holds that Mircea the Elder founded the church after a final battle near Coroglași, in memory of the fallen and of the Serbian prince Marko Kraljević. In 2005 the Federation of Romanians in Serbia planned a memorial service for the 610th anniversary of the Battle of Rovine, but Serbian police intervened and banned it.