| Birinci Şahsevən | |
| Settlement Type: | Municipality |
| Pushpin Map: | Azerbaijan |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Azerbaijan |
| Subdivision Type1: | Rayon |
| Subdivision Name1: | Beylagan |
| Population Total: | 7345 |
| Timezone: | AZT |
| Utc Offset: | +4 |
| Utc Offset Dst: | +5 |
| Coordinates: | 39.6372°N 47.7528°W |
Birinci Şahsevən (also, Shakhsevan, Shakhsevan Pervoye, and Shakhsevan Pervyy) is a village and the most populous municipality, except the capital Beyləqan, in the Beylagan Rayon of Azerbaijan. It has a population of 7,345.