| Official Name: | Troitsky |
| Native Name: | Троицкий |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Aleysky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 52.5833°N 123°W[1] |
Troitsky (Russian: Троицкий) is a rural locality (a settlement) in Zavetilyichyovsky Selsoviet, Aleysky District, Altai Krai, Russia. The population was 42 as of 2013.[2] There are 3 streets.
Troitsky is located 19 km northwest of Aleysk (the district's administrative centre) by road, on the Karymka River. Zavety Ilyicha is the nearest rural locality.[3]