| Nikolske Raion | |
| Native Name: | Нікольський район |
| Native Name Lang: | uk |
| Settlement Type: | Raion |
| Flag Alt: | Flag of Nikolske Raion |
| Shield Alt: | Coat of arms of Nikolske Raion |
| Mapsize: | 250px |
| Coordinates: | 47.2031°N 37.3226°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Donetsk Oblast |
| Parts Type: | Subdivisions |
| Parts Style: | coll |
| P1: | 0 — city councils |
| P2: | 1 — settlement councils |
| P3: | 10 — rural councils |
| P4: | Number of localities: 0 — cities |
| P5: | |
| P6: | 31 — villages |
| P7: | 11 — rural settlements |
| Established Title1: | Established |
| Established Date1: | 1925 |
| Established Title2: | Disestablished |
| Established Date2: | 18 July 2020 |
| Seat Type: | Admin. center |
| Seat: | Nikolske |
| Leader Title: | Governor |
| Leader Name: | Vasyl′ Balabanov |
| Leader Title1: | Chairman |
| Unit Pref: | Metric |
| Area Total Km2: | 1221 |
| Population Total: | 27337 |
| 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: | 87000-87062 |
| Area Code Type: | Area code |
| Area Code: | +380 6246 |
Nikolske Raion (Ukrainian: Нікольський район), until May 2016 Volodarske Raion (Ukrainian: Володарський район), was one of the raions of Donetsk Oblast, located in southwestern Ukraine. The administrative center of the raion was the urban-type settlement of Nikolske. The raion was abolished on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Donetsk Oblast to eight, of which only five were controlled by the government. The area of the former Nikolske Raion was merged into Mariupol Raion.[1] [2] The last estimate of the raion population was
On 21 May 2016, Verkhovna Rada adopted decision to rename Volodarske Raion to Nikolske Raion according to the law prohibiting names of Communist origin.[3] The raion center, Volodarske, was previously renamed to Nikolske.
Ethnic groups in the raion, according to the 2001 Ukrainian Census:[4]
| Ethnicity | Number | Proportion | |
| Ukrainians | 16,494 | 52.9% | |
| Russians | 7,538 | 24.2% | |
| Greeks | 6,223 | 20.0% | |
| Belarusians | 233 | 0.7% |