Bulgarian Social Democratic Workers' Party (Narrow Socialists) (Bulgarian: Българска работническа социалдемократическа партия (тесни социалисти), romanized: Balgarska rabotnicheska sotsialdemokraticheska partia (tesni sotsialisti)) was a Marxist, socialist political party in Bulgaria.
[1] The other faction formed the Bulgarian Social Democratic Workers Party (Broad Socialists).
The party's leader was Dimitar Blagoev, the driving force behind the formation of the BSDWP in 1894.
It comprised most of the hardline Marxists in the Workers' Social Democratic Party, which followed the doctrine of class struggle.
This entailed concentrating on building the party amongst the industrial working class rather than creating a broader political framework which would also appeal to the peasantry.