The Labour and Solidarity Party (Portuguese: Partido de Trabalho e Solidariedade, PTS) is a social democratic political party in Cape Verde. It is based in São Vicente and led by Gilson Alves.

The party was founded by Onésimo Silveira in November 1998.^[1] In the buildup to the January 2001 parliamentary elections the party joined the Democratic Alliance for Change (ADM), a coalition including the Democratic and Independent Cape Verdean Union (UCID) and the Democratic Convergence Party (PCD). The alliance received 6% of the vote, winning two seats in the National Assembly.^[2] In the presidential elections a month later, ADM candidate Jorge Carlos Fonseca finished third of the four candidates with 3% of the vote.

In the 2004 local elections, the party received 11% of the vote in São Vicente; it won one seat on the Municipal Council and two seats in the Municipal Assembly.^[3] The PTS did not contest the 2006 parliamentary elections, but ran in the 2011 elections. It received only 1,040 votes (0.5%), failing to win a seat.