Bulgarian Socialist Party

Bulgarian Socialist Party
Българска социалистическа партия
AbbreviationBSP
ChairpersonAtanas Zafirov
Parliamentary leaderDragomir Stoynev
Founded3 April 1990 (1990-04-03)
Preceded byBulgarian Communist Party
Headquarters20 Positano Street, Sofia
NewspaperDuma
Youth wingBulgarian Socialist Youth
Membership (2020) 80,236
Ideology
Political positionCentre-left
National affiliationBSP – United Left
European affiliationParty of European Socialists
European Parliament groupProgressive Alliance of Socialists and Democrats
International affiliation
Colors  Red
SloganРазумните решения
Razumnite resheniya
('Reasonable solutions')
National Assembly
19 / 240
European Parliament
2 / 17
Municipalities
72 / 265
Party flag
Website
bsp.bg

The Bulgarian Socialist Party (BSP), also known as The Centenarian, is a centre-left, social democratic political party in Bulgaria. The BSP is a member of the Socialist International, Party of European Socialists, and Progressive Alliance. Although founded in 1990 in its modern form, it traces its political heritage back to the founding of the BRSDP in 1891. It is also Bulgaria's largest party by membership numbers.