Pınarhisar (Bulgarian: Бунархисар, Bunarhisar) is a town and district of Kırklareli Province in the Marmara region of Turkey. The mayor is Mustafa Cingöz (CHP). The population is 10,463 as of 2010.

The town was a part of the defensive line Lüleburgaz - Karaağaç - Bunarhisar during the First Balkan War. The former spelling of its name was Bunarhisar. The settlement was captured by Bulgarians in the First Balkan War but was taken back by the Ottoman Empire in the course of the Second Balkan War. Its previous Bulgarian inhabitants were settled mainly in Akhtopol.

Pınarhisar in Kırklareli Province (in the Marmara region) of Turkey Urban districts Kırklareli Rural districts Babaeski - Demirköy - Kofçaz - Lüleburgaz - Pehlivanköy - Pınarhisar - Vize Regions Provinces Aegean Afyonkarahisar - Aydın - Denizli - İzmir - Kütahya - Manisa - Muğla - Uşak Black Sea Amasya - Artvin - Bartın - Bayburt - Bolu - Çorum - Düzce - Giresun - Gümüşhane - Karabük - Kastamonu - Ordu - Rize - Samsun - Sinop - Tokat - Trabzon - Zonguldak Central Anatolia Aksaray - Ankara - Çankırı - Eskişehir - Karaman - Kayseri - Kırıkkale - Kırşehir - Konya - Nevşehir - Niğde - Sivas - Yozgat Eastern Anatolia Ağrı - Ardahan -Bingöl - Bitlis - Elâzığ - Erzincan - Erzurum - Hakkâri - Iğdır - Kars - Malatya - Muş - Siirt - Tunceli - Van Marmara Balıkesir - Bilecik - Bursa - Çanakkale - Edirne - Istanbul - Kırklareli - Kocaeli - Sakarya - Tekirdağ - Yalova Mediterranean Adana - Antalya- Burdur - Hatay - Isparta - Kahramanmaraş - Kilis - Mersin - Osmaniye Southeastern Anatolia Adıyaman - Batman - Diyarbakır - Gaziantep - Mardin - Şanlıurfa - Şırnak

Coordinates: 41°37′N 27°31′E / 41.617°N 27.517°E / 41.617; 27.517