Tirebolu is a town in Giresun Province, Turkey. It is the seat of Tirebolu District. Its population is 20,671. Tirebolu is located on a hill named A…Tirebolu is a town in Giresun Province, Turkey. It is the seat of Tirebolu District. Its population is 20,671. Tirebolu is located on a hill named Ayana, which rises from the Black Sea shore just to the west of the Harşit River estuary. Tirebolu has a small harbour and a fishing fleet, but the mainstay of the local economy is growing hazelnuts.