Ortahisar is a municipality and district of Trabzon Province, Turkey.

On 31 March 2024, Ahmet Kaya (CHP) was elected mayor.

In April 2021, archaeologists announced the discovery of Roman and Byzantine period archeological remains.

The southern part of the wicker columns and fortifications of the Roman emperor Hadrian's period, trench walls of Byzantine period dating back to 1460 have been discovered.

According to the Trabzon City Municipality, the excavation area is planned to be turned into an open-air museum.