| Official Name: | Severka |
| Native Name: | Северка |
| Settlement Type: | Village |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Klyuchevsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 52.1167°N 95°W[1] |
Severka (Russian: Северка) is a rural locality (a selo) and the administrative center of Seversky Selsoviet of Klyuchevsky District, Altai Krai, Russia. The population was 1,562 as of 2016.[2] There are 16 streets.
Severka is located 16 km south of Klyuchi (the district's administrative centre) by road. Novovoznesenka is the nearest rural locality.[3] Between Severka and the nearby border with Kazakhstan there is a Lake named Petokhovo (Ozero Petuhovskoe, Russian: Russian: озеро Петуховское), which is a hypersaline soda lake. Metagenomic analyses of lake samples collected in July 2016 indicate the presence of archaea belonging to the Lokiarchaeota group (MAG: Ca. Lokiarchaeota archaeon isolate CSSed165cm_327R1) among other microbes.[4] [5]