| Krná | |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Type2: | Region |
| Subdivision Name2: | Banská Bystrica |
| Subdivision Type3: | District |
| Subdivision Name3: | Poltár |
| Pushpin Map: | Slovakia Banská Bystrica Region#Slovakia |
| Pushpin Relief: | 1 |
| Pushpin Map Caption: | Location of Krná in the Banská Bystrica Region##Location of Krná in Slovakia |
| Coordinates: | 48.5°N 63°W |
| Established Title: | First mentioned |
| Established Date: | 1573 |
| Area Total Km2: | 14.02[1] |
| Area Total Sq Mi: | 5.41 |
| Elevation M: | 318[2] |
| Elevation Ft: | 1,043 |
| Population Total: | 51[3] |
| Population Density Km2: | 3.74[4] |
| Population Density Sq Mi: | 1.44 |
| Postal Code Type: | Postal code |
| Postal Code: | 985 25 |
| Area Code: | +421 47 |
| Blank Name: | Car plate |
| Blank Info: | PT |
| Website: | www.krna.sk |
Krná (Hungarian: Kiskorna) is a village and municipality in the Poltár District in the Banská Bystrica Region of Slovakia. In respect to population it belongs to the smallest municipalities in Slovakia. In the village is public library and the dwellings are connected to the public water supply net.
Before the establishment of independent Czechoslovakia in 1918, Krná was part of Nógrád County within the Kingdom of Hungary. From 1939 to 1945, it was part of the Slovak Republic.