| Voivodeship | Warmian-Masurian |
|---|---|
| County | Olsztyn |
| Gmina | Jonkowo |
| Coordinates | 53°52′N 20°23′E |
Kajny /kaIny/ is a village in the administrative district of Gmina Jonkowo, within Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland.
Before 1772 the area was part of Kingdom of Poland, and in 1772–1945 it belonged to Prussia and Germany (East Prussia).