| Name | Kętrzyn |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 10,340,000 |
| Date founded | After 1329 |
| Elevation (m) | 105 |
| Country | Poland |
| Administrative division | Warmian-Masurian |
| Continent | Europe |
| Latitude (°) | 54.0833320618 |
| Waterbody | |
| Longitude (°) | 21.3833332062 |
| Website | http://www.miastoketrzyn.pl/ |
| Population (people) | 27,827 (30/06/2015) |
| Demonym |