Kayı is a village in Bor District, in Niğde Province, Türkiye. Kayı lies at 1,080 m above sea level, 5.0 km from the Mount Melendiz mountains. It has 759 inhabitants. The nearest city is Bor, 13.7 km to the east. Among the landmarks around are Tyana (13.7 km), Kınık Höyük (4.6 km) and Niğde Alaaddin Mosque (25 km).