| Official Name: | Byssa |
| Native Name: | Бысса |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Amur Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Amur Oblast |
| Subdivision Name3: | Selemdzhinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +9:00 |
| Coordinates: | 52.4°N 161°W[1] |
Byssa (ru|Бысса) is a rural locality (a selo) in Norsky Selsoviet of Selemdzhinsky District, Amur Oblast, Russia. The population was 39 as of 2018.[2]
Byssa is located on the left bank of the Selemdzha, at the confluence with its left tributary the Byssa river, 241 km southwest of Ekimchan (the district's administrative centre) by road. Fevralsk is the nearest rural locality.[3]