The Workers' Party (Spanish: Partido de los Trabajadores) is a far-left Trotskyist political party of Costa Rica. The party was founded on 1 May 2012 on the basis of the student organization Movement toward Socialism led by labor union leader and lawyer Hector Monestel,^[1] and currently holds no seats in parliament nor municipal offices. It is a member of the International Workers League – Fourth International. Highly critical of the more moderate Broad Front (the main left-wing party of Costa Rica), it proclaims itself as a "classist and socialist alternative". Internationalism is one of its guidelines and as such it proposes the re-establishment of the Federal Republic of Central America abolished in 1838, reuniting all Central American countries in one single socialist Federation. It also defends feminist, environmentalist and pro-LGBTI ideas.^{[citation needed]}

The party contested the 2014 elections with Monestel as nominee obtaining 4,897 votos (0,24%) for the presidential ticket and 12,998 votos (0.63%) for the parliamentary ticket gaining no seats.^[2] It took part in the mid-period 2016 municipal elections obtaining only 742 votes, reason why the Electoral Court disbanded the party as Costa Rica's electoral law requires a minimal of 3000 votes for a party to keep legal standing. The party had to make all the process for inscription once again starting as new, successfully registering again for the 2018 Costa Rican general election^[3] nominating labor union leader and high school teacher Jhon Vega as candidate, the party received 4,060 votes and was the least voted option.^[2]