| Jaczno | |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Podlaskie |
| Subdivision Type2: | County |
| Subdivision Name2: | Sokółka |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Dąbrowa Białostocka |
| Coordinates: | 53.6481°N 23.4336°W |
| Population Total: | 56 |
| Population Density Km2: | 12.67 |
| Area Total Km2: | 4.42 |
| Population As Of: | 2021 |
| Postal Code Type: | Postal code |
| Postal Code: | 16-200 |
| Area Code: | +48 85 |
| Registration Plate Type: | Car plates |
| Registration Plate: | BSK |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Blank Info: | 0026519 |
| Blank Name: | SIMC |
Jaczno is a village in northeast Poland in the gmina of Dąbrowa Białostocka, Sokółka County, Podlaskie Voivodeship.[1] [2] As of 2021, it had a population of 56.[3]