| Brzeźnik | |
| Settlement Type: | Village |
| Pushpin Map: | Poland |
| Coordinates: | 51.2439°N 15.4689°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Lower Silesian |
| Subdivision Type2: | County |
| Subdivision Name2: | Bolesławiec |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Bolesławiec (rural) |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
Brzeźnik is a village in the administrative district of Gmina Bolesławiec, within Bolesławiec County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 80NaN0 west of Bolesławiec, and 1110NaN0 west of the regional capital Wrocław.