| Official Name: | Cernik |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | bottom |
| Coordinates: | 45.29°N 17.38°W |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Name1: | Brod-Posavina |
| Area Footnotes: | [1] |
| Area Total Km2: | 127.9 |
| Population As Of: | 2021 |
| Population Total: | 2964 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
Cernik is a village and a municipality in the Brod-Posavina County. According to the 2011 census, there are a total of 3,640 inhabitants in the area. It was ruled by the Ottoman Empire between 1536 and 1691 and was the ultimate centre of the Sanjak of Pakrac until the Austrian conquest.
There are 11 settlements in the municipality: