| Pervomaiskyi Raion | |
| Native Name: | Первомайський район |
| Pushpin Label Position: | right |
| Coordinates: | 49.3544°N 36.2705°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Ukraine |
| Subdivision Type1: | Oblast |
| Subdivision Name1: | Kharkiv Oblast |
| Seat Type: | Admin. center |
| Seat: | Pervomaiskyi |
| Established Title1: | Established |
| Established Title2: | Disestablished |
| Established Date2: | 18 July 2020 |
| Area Total Km2: | 1225.3 |
| Population As Of: | 2020 |
| Population Total: | 14747 |
| Population Density Km2: | auto |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Website: | http://pervomairda.org.ua/ |
Pervomaiskyi Raion was a raion (district) in Kharkiv Oblast of Ukraine. Its administrative center was the city of Pervomaiskyi which was incorporated as a city of oblast significance and did not belong to the raion. The raion was abolished on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Kharkiv Oblast to seven. The area of Pervomaiskyi Raion was merged into Lozova Raion.[1] [2] The last estimate of the raion population was
At the time of disestablishment, the raion consisted of two hromadas:[3]