Juan Castillo (Uruguayan politician)

Juan Castillo
Castillo in 2025
Minister of Labour and Social Welfare
Assumed office
1 March 2025
PresidentYamandu Orsi
Preceded byMario Arizti
Senator of Uruguay
In office
14 December 2017 – 14 February 2020
Preceded byMarcos Carámbula
Succeeded byOscar Andrade
Secretary General of the Communist Party of Uruguay
In office
18 June 2017 – 21 December 2025
Preceded byEduardo Lorier
Succeeded byÓscar Andrade
National Director of Labour
In office
1 March 2015 – 20 June 2017
PresidentTabaré Vázquez
Succeeded byJorge Mesa
Vice President of the Broad Front
In office
30 June 2012 – 1 March 2015
Preceded byPosition Established
Succeeded byBlanca Elgart (PS), Sandra Lazo (MPP), José Carlos Mahía (AU)
Personal details
Born (1957-11-29) 29 November 1957
PartyCommunist Party of Uruguay, Broad Front
Children3
OccupationPolitician, trade unionist, maritime worker
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Juan Alberto Castillo (born 27 November 1957) is a Uruguayan trade unionist, maritime worker, and politician who has served as the Minister of Labour and Social Welfare since March 2025, in the cabinet of President Yamandú Orsi.

A longtime leader within the Uruguayan labour movement, Castillo began his career as a dredging operator in the Port of Montevideo and rose to become a key figure in the country's main trade union federation, the PIT-CNT, serving as its General Coordinator for over a decade.

Castillo served as the Secretary General of the Communist Party of Uruguay from 2017 until 2025 and was a Senator of the Republic from 2017 to 2020. He previously held the position of National Director of Labour under President Tabaré Vázquez and was one of the vice presidents of the Broad Front coalition. His political career has been defined and his influence within both the Communist Party and the Uruguayan labour movement.

During his tenure as Minister, Castillo has focused on mediating between trade unions and the government, reducing informal labour, strengthening collective bargaining, and addressing workplace accidents. Ideologically a Marxist-Leninist, he has also supported proposals for a wealth tax to fund social programs and has advocated for advance notice of corporate restructurings to protect domestic jobs.