| İnkaya Cave | |
| Other Name: | İnkaya Mağarası |
| Map: | Turkey |
| Relief: | yes |
| Location: | Güzelbahçe, Izmir, Turkey |
| Coordinates: | 38.3333°N 26.8326°W |
| Length: | 222m (728feet) |
| Height Variation: | 5m (16feet) |
İnkaya Cave (Turkish: İnkaya Mağarası) is a cave located on the eastern slope of Mount Kocadağ at Yelki village in Güzelbahçe, Izmir, western Turkey.
The cave is 222m (728feet). The dry cave is developed generally horizontal and partly vertical dry cave. Potsherds found in the cave point the cave was used as a settlement in ancient times.
The cave's geological-geomorphological constitution resulted from some intersectional fractures inside a Cretaceous limestone formation. A wide hall is formed after a steep descent. It is about 20m (70feet) wide and in average 5m (16feet) high. The hall continues in an inclined gallery towards south. At the end of gallery, a 7m (23feet)-deep hole leads to the cave's lowest level and the end.