| Official Name: | Kujnik |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | bottom |
| Coordinates: | 45.4003°N 17.5036°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Slavonia |
| Subdivision Type2: | County |
| Subdivision Name2: | Požega-Slavonia County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Brestovac |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 5.7 |
| Elevation M: | 204 |
| Population As Of: | 2021 |
| Population Total: | 24 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 34320 |
| Area Code: | 034 |
Kujnik is a village in Požega-Slavonia County, Croatia. The village is administered as part of the Brestovac municipality.
According to the 2021 national census, there are 248 people currently living there,[2] which is a significant increase from the 2001 census where the population of the village was 21.[3] The village is connected by the D38 state road.