Semiluki (Russian: Семилу́ки) is a town and the administrative center of Semiluksky District in Voronezh Oblast, Russia, located on the Don River.

[8] In the spring of 1984, on the right bank of the Veduga River, 4 km north of Semiluki, students of the Geological Faculty of Voronezh State University found an incomplete sketeton of ichthyosaur during their field work.

Remains, including bones of skull, a fragmentary coracoid, limbs, incomplete vertebral column and ribs, were collected from the glauconitic–quartz sand, whose age is set in the range from Albian to Cenomanian (Cretaceous).

[citation needed] In 1929, the main enterprise of the settlement, a factory of fireproof materials (now JSC "Semiluksky refractory plant"), was built.

The microdistricts bear proper names; however, an informal and traditional system of dividing the town into residential areas also exists.