United Labour Social Democratic Party

The United Labour Social Democratic Party (Обединена работническа социалнодемократическа партия, Obedinena rabotnicheska sotsialdemokraticheska partiya, ORSDP) was a political party in Bulgaria.


The party was established as a breakaway from the Bulgarian Social Democratic Workers Party (Broad Socialists) following the 1923 coup, and was initially allied with the Democratic Alliance.[1]

The party first contested national elections alone in 1931, when it ran in the National Assembly elections,[2] but failed to win a seat.[3]

Between 1945 and 1947 the ORSDP was allied with Bulgarian Agrarian People's Union "Nikola Petkov",[1] with the parties running a joint list in the 1946 Constitutional Assembly election. The joint list finished in second place with 101 seats.[4] The following year a Communist regime was established.[5]


  1. ^ a b Nohlen, D & Stöver, P (2010) Elections in Europe: A data handbook, p374 ISBN 978-3-8329-5609-7
  2. ^ Nohlen & Stöver, p380
  3. ^ Nohlen & Stöver, p386
  4. ^ Nohlen & Stöver, p376
  5. ^ Nohlen & Stöver, p355