| En Name: | Terneysky District |
| Ru Name: | Тернейский район |
| Image View: | Посёлок Пластун.jpg |
| Coordinates: | 46°N 167°W |
| Federal Subject: | Primorsky Krai |
| Adm Data As Of: | June 2012 |
| Adm Ctr Type: | urban-type settlement |
| Adm Ctr Name: | Terney |
| No Of Urban-Type Settlements: | 3 |
| No Of Rural Localities: | 8 |
| Mun Data As Of: | August 2004 |
| Mun Formation1: | Terneysky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 3 |
| Mun Formation1 No Of Rural Settlements: | 7 |
| Area Km2: | 27102.2 |
| Pop 2010Census: | 12468 |
| Urban Pop 2010Census: | 79.1% |
| Rural Pop 2010Census: | 20.9% |
| Website: | http://mo.primorsky.ru/terneisky/ |
| Date: | March 2013 |
Terneysky District (Russian: Терне́йский райо́н) is an administrative[1] and municipal[2] district (raion), one of the twenty-two in Primorsky Krai, Russia. It is located in the north of the krai and borders with Khabarovsk Krai in the north, the Sea of Japan in the east and southeast, the territory of Dalnegorsk Town Under Krai Jurisdiction in the southwest, and with Krasnoarmeysky and Pozharsky Districts in the west. The area of the district is 27102.2km2.[3] Its administrative center is the urban locality (an urban-type settlement) of Terney. Population: The population of Terney accounts for 28.8% of the district's total population.
Terneysky District is the largest district of the krai in terms of area and the smallest by population. Most of the district's territory is covered with forests which are the district's main riches. Most of the Sikhote-Alin Nature Reserve is located in Terneysky District.
The industry is represented by the timber processing enterprises and the fish processing factory in Svetlaya.
There are springs of thermal radon waters in the district (Amginskoye Deposit). The Tyoply Klyuch Health Resort operates near these springs.