The Democratic Socialist Party () was a political party in Argentina formed in 1959 as a division of the Socialist Party.
The most important figure of the PSD was Alfredo Bravo, a teacher and civil rights activist, which was a deputy and the presidential candidate of the Socialist Party in the 2003 election.
The party joined the Popular Socialist Party in 2002 to form the Socialist Party.
See also
- Politics of Argentina
- Socialist Party (Argentina)