Popular Socialist Party
Popular Socialist Party may refer to:
- Dominican Popular Socialist Party
 - Popular Socialist Party (Argentina)
 - Popular Socialist Party (Brazil)
 - Popular Socialist Party (Chile)
 - Popular Socialist Party (Cuba)
 - Popular Socialist Party (Haiti)
 - Popular Socialist Party (Mexico)
 - Popular Socialist Party (Spain)
 - Popular Socialist Party of Mexico
 - Labour Popular Socialist Party, early 20th-century Russian party
 - Lithuanian Popular Socialist Democratic Party
 - Praja Socialist Party (India)