Koroni (Κορώνη) is a town and municipality in Messenia, Greece. Known as Corone by the Venetians and Ottomans, the town of Koroni (pop. 1,668) sits on the southwest peninsula of the Peloponnese on the Gulf of Messinia in southern Greece 45 minutes southwest of Kalamata. The town is nestled on a hill below an impressive Venetian castle and reaches to the edge of the gulf. The town is the municipal seat of the surrounding Municipality of Koroni, which has a land area of 105.163 km² and a population of 5,067 (2001 census). The municipality's next largest towns are Charokopio (pop. 743), Chrysokellaria (528), and Vasilitsi (488). It also includes the uninhabited offshore island of Venetiko.
In the summertime German and English tourists flock to Koroni and spend their holidays in the hot Mediterranean sun. The town is full of life and passion. Lazy days in the sun during the day and a vibrant social nightlife in the evening.
Koroni was founded in ancient times. In the 6th and 7th centuries AD, the Byzantines built here a fortress one the ruins of the old city. In 1206, the Venetians occupied it, turning Koroni into an important stage of their sea routes towards the Eastern Mediterranean. The fortress and town were captured by the Ottoman troops of Sultan Bayezid II in around 1500. Apart a short return to Venice in 1686-1715, they remained under the control of the Ottoman Empire until 1828.