Białorzeczka
{{Infobox settlement
| name = Białorzeczka
| settlement_type = Village
| total_type =
| image_flag =
| image_shield =
| image_map =
| subdivision_type = Country
| subdivision_name = {{POL}}
| subdivision_type1 = Voivodeship
| subdivision_name1 = Podlaskie
| subdivision_type2 = County
| subdivision_name2 = Sejny
| subdivision_type3 = Gmina
| subdivision_name3 = Giby
| coordinates = {{coord|54|3|N|23|19|E|region:PL|display=title,inline}}
| pushpin_map = Poland
| pushpin_label_position = bottom
| elevation_m =
| population_total = 36{{Cite web|url=https://www.polskawliczbach.pl/wies_Bialorzeczka |title=Population of Białorzeczka village |access-date= 2021-11-04 }}
| postal_code_type = Postal code
| blank_name = Car plates
| blank_info = BSE
| website =
}}
Białorzeczka {{IPAc-pl|b|j|a|ł|o|'|ż|e|cz|k|a}}, is a village in the administrative district of Gmina Giby, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania.{{TERYT}} It lies approximately {{convert|9|km|mi|0|abbr=on}} south-west of Sejny and {{convert|105|km|mi|0|abbr=on}} north of the regional capital Białystok.
History
In 1890 the population of the village was numbered at 40 people and 6 homes.{{Cite web |year=1890 |title=Białorzeczka |url=http://dir.icm.edu.pl/pl/Slownik_geograficzny/Tom_XV_cz.1/129 |page=129 |language=Polish}}
According to the First General Population Census carried out in 1921, Białorzeczko had 9 houses and was inhabited by 62 people. At that time, the village had a bi-national and bi-confessional character, as 51 inhabitants of the village declared Roman Catholicism, while the remaining 11 declared Old Believers' religion. The religious division of Białorzeczko's inhabitants coincided with their national-ethnic structure, as 51 people declared Polish nationality, while the remaining 11 declared Russian national identity.{{Cite web |year=1924 |title=Skorowidz miejscowości Rzeczypospolitej Polskiej: opracowany na podstawie wyników pierwszego powszechnego spisu ludności z dn. 30 września 1921 r. i innych źródeł urzędowych |trans-title=Skorowidz miejscowości Rzeczypospolitej Polskiej: compiled from the results of the first general population census of 30 September 1921 and other official sources |url=https://pbc.biaman.pl/dlibra/doccontent?id=27140&dirids=1 |page=69 (78) |language=Polish}}