Sammarinese Reformist Socialist Party

The  Sammarinese Reformist Socialist Party (Partito Socialista Riformista Sammarinese, PSRS) was a social-democratic political party in San Marino formed from a regional split from the Party of Socialists and Democrats in Borgo Maggiore.

On 30 May 2012, the party merged with the New Socialist Party to form the modern-day Socialist Party.