PSF is an abbreviation that may refer to:
== Organisations == === Political parties === French Social Party (Parti Social Français) (1936–1940), a right-wing nationalist party French Socialist Party (Parti Socialiste Français), active since 1969 Palestinian Popular Struggle Front Peoples Students Federation, the youth wing of the Pakistan People's Party Provisional Sinn Féin, Ireland Socialist Party without Borders (Parti Socialiste sans Frontières), a leftist party in Chad
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).