| Nyzhnyosirogizkyi Raion | |
| Native Name: | Нижньосірогозький район |
| Native Name Lang: | uk |
| Settlement Type: | Raion |
| Flag Alt: | Flag of Nyzhnyosirogizkyi Raion |
| Shield Alt: | Coat of arms of Nyzhnyosirogizkyi Raion |
| Mapsize: | 250px |
| Coordinates: | 46.8981°N 34.4249°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Kherson Oblast |
| Parts Type: | Subdivisions |
| Parts Style: | coll |
| P1: | 0 — city councils |
| P2: | 1 — settlement councils |
| P3: | 13 — rural councils |
| P4: | Number of localities: 0 — cities |
| P5: | |
| P6: | 22 — villages |
| P7: | 2 — rural settlements |
| Established Title1: | Established |
| Established Date1: | 1923 |
| Established Title2: | Disestablished |
| Established Date2: | 18 July 2020 |
| Seat Type: | Admin. center |
| Seat: | Nyzhni Sirohozy |
| Leader Title: | Governor |
| Leader Name: | Oleksandr Shylkin |
| Leader Title1: | Chairman |
| Unit Pref: | Metric |
| Area Total Km2: | 1210 |
| Population Total: | 15033 |
| Population As Of: | 2020 |
| Population Density Km2: | auto |
| Timezone1: | EET |
| Utc Offset1: | +02:00 |
| Timezone1 Dst: | EEST |
| Utc Offset1 Dst: | +03:00 |
| Postal Code Type: | Postal index |
| Postal Code: | 74700—74742 |
| Area Code Type: | Area code |
| Area Code: | +380 5540 |
| Website: | http://n-serogozy.ks.ua |
Nyzhni Sirohozy Raion (Ukrainian: Нижньосірогозький район) was one of the 18 administrative raions (a district) of Kherson Oblast in southern Ukraine. Its administrative center was located in the urban-type settlement of Nyzhni Sirohozy. The raion was abolished on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Kherson Oblast to five. The area of Nyzhni Sirohozy Raion was merged into Henichesk Raion.[1] [2] The last estimate of the raion population was
At the time of disestablishment, the raion consisted of one hromada,[3] Nyzhni Sirohozy settlement hromada with the administration in Nyzhni Sirohozy.