| Official Name: | Gegetuy |
| Native Name: | Гэгэтуй |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Buryatia#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Republic of Buryatia |
| Subdivision Name3: | Dzhidinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +8:00 |
| Coordinates: | 50.6333°N 118°W[1] |
Gegetuy (Russian: Гэгэтуй; Buriat: Гэгээтэ, Gegeete) is a rural locality (a selo) in Dzhidinsky District, Republic of Buryatia, Russia. The population was 1,253 as of 2010.[2] There are 7 streets.
Gegetuy is located 10 km northwest of Petropavlovka (the district's administrative centre) by road. Bulyk is the nearest rural locality.[3]