| Biržai District Municipality | |
| Native Name: | Biržų rajono savivaldybė |
| Native Name Lang: | lt |
| Settlement Type: | District Municipality |
| Image Map1: | BirzuRajonoSeniunijos.png |
| Map Caption1: | Location of Biržai |
| Coordinates: | 56.2828°N 24.8125°W |
| Parts Style: | para |
| Subdivision Type: | Country |
| Subdivision Name: |  Lithuania |
| Subdivision Type1: | Region |
| Subdivision Name1: | Aukštaitija |
| Subdivision Type2: | County |
| Subdivision Name2: | Panevėžys County |
| Established Title: | Established |
| Seat Type: | Capital |
| Seat: | Biržai |
| Parts Type: | Elderships |
| P1: | 8 |
| Government Type: | City Council |
| Governing Body: | Biržai District Council |
| Leader Title: | Mayor |
| Leader Name: | Kęstutis Knizikevičius (LSDP) |
| Leader Title1: | Leading |
| Leader Name1: | Social Democratic Party[1] |
| Unit Pref: | Metric |
| Area Rank: | 16th |
| Area Total Km2: | 1476 |
| Elevation M: | 88 |
| Population As Of: | 2022[2] |
| Population Total: | 22580 |
| Population Rank: | 37th |
| Population Density Km2: | 15.30 |
| Population Density Rank: | 48th |
| Timezone1: | EET |
| Utc Offset1: | +2 |
| Timezone1 Dst: | EEST |
| Utc Offset1 Dst: | +3 |
| Postal Code Type: | ZIP Codes |
| Postal Code: | 41100–41481 |
| Area Code Type: | Phone code |
| Area Code: | +370 (450) |
Biržai District Municipality is a Lithuanian municipality, located in northern Lithuania, Aukštaitija ethnographic region, Panevėžys County.
The towns of Biržai and Vabalninkas lie within the district. About 64% of its land is agricultural, including a number of organic farms. Portions are protected in Biržai Regional Park and as botanical and geological reserves.[3]
Biržai District Municipality is divided into 8 elderships:[4]
| Eldership (Administrative Center) | Area | Population (2021) | |
|---|---|---|---|
| Biržai (Biržai) | 16.35km2 | 10,734 | |
| Nemunėlio Radviliškis (Nemunėlio Radviliškis) | 200km2 | 1,238 | |
| Pabiržė (Pabiržė) | 90km2 | 1,442 | |
| Pačeriaukštė (Pačeriaukštė) | 110km2 | 1,130 | |
| Papilys (Papilys) | 250km2 | 1,439 | |
| Parovėja (Parovėja) | 174km2 | 1,607 | |
| Širvėna (Biržai) | 258km2 | 3,431 | |
| Vabalninkas (Vabalninkas) | 211km2 | 2,293 |
District structure:
Biggest population (2001):