| En Name: | Kamensky District |
| Ru Name: | Каменский район |
| Image View: | Bridge Kamen-na-Obi.jpg |
| Coordinates: | 53.8°N 102°W |
| Image Coa: | Coat of Arms of Kamen-na-Obi (Altai kray).png |
| Federal Subject: | Altai Krai |
| Adm Data As Of: | September 2015 |
| Adm Ctr Type: | town |
| Adm Ctr Name: | Kamen-na-Obi |
| Town Of District Significance Type: | Towns of district significance |
| No Of Towns Of District Significance: | 1 |
| Selsoviet Type1: | Selsoviets |
| No Of Selsoviets Type1: | 13 |
| No Of Rural Localities: | 33 |
| Mun Data As Of: | September 2015 |
| Mun Formation1: | Kamensky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 1 |
| Mun Formation1 No Of Rural Settlements: | 13 |
| Area Km2: | 3666 |
| Pop 2010Census: | 12025 |
| Urban Pop 2010Census: | 0% |
| Rural Pop 2010Census: | 100% |
| Website: | http://kamenrai.ru |
| Date: | May 2017 |
| Bodystyle: | width:23.5em |
| Population of Kamensky District | |
| Label1: | 2010 Census |
| Data1: | 12,025 |
| Label2: | 2002 Census |
| Data2: | 16,600 |
| Label3: | 1989 Census |
| Data3: | 16,977 |
| Label4: | 1979 Census |
| Data4: | 18,801 |
Kamensky District (Russian: Ка́менский райо́н) is an administrative[1] and municipal[2] district (raion), one of the fifty-nine in Altai Krai, Russia. It is located in the north of the krai and borders Krutikhinsky and Suzunsky Districts of Novosibirsk Oblast in the north, Shelabolikhinsky District in the east, Bayevsky and Tyumentsevsky Districts in the south, and Pankrushikhinsky District in the west. The area of the district is 3666km2.[3] Its administrative center is the town of Kamen-na-Obi. As of the 2010 Census, the total population of the district was 12,025.
The district is located on the northern border of Altai Krai, straddling the Ob River, which runs through the district from east to west as it makes its turn to the north. The terrain is hilly steppe on the Ob Plateau. Besides the Ob, the district is also watered by the Kulunda Main Canal, which has its head pumping station in Kamen-na-Obi. While much of the area is agricultural land, there are forests in the east on the meandering Ob floodplain, as well as numerous fresh and saltwater lakes. The soils are medium chernozem (black),sandy soils. The regional city of Barnaul is 125 km to the east.[3]
Average temperature in January is, and average July temperature is . Annual precipitation is 330mm.[3] The climate is Humid continental climate, cool summer, (Dfb). This climate is characterized by large swings in temperature, both diurnally and seasonally, with mild summers and cold, snowy winters.
Employment in the district is focused on food processing and agriculture.[3]