| Honorific-Prefix: | His Excellency |
| Luís Capoulas Santos | |
| Honorific-Suffix: | GCMA |
| Office1: | Minister of Agriculture, Forests and Rural Development |
| Term Start1: | 26 November 2015 |
| Term End1: | 26 October 2019 |
| Primeminister1: | António Costa |
| Predecessor1: | Assunção Cristas |
| Successor1: | Maria do Céu Antunes |
| Term Start2: | 3 October 1998 |
| Term End2: | 6 April 2002 |
| Primeminister2: | António Guterres |
| Predecessor2: | Fernando Gomes da Silva |
| Successor2: | Armando Sevinate Pinto |
| Office3: | Member of the European Parliament |
| Term Start3: | 20 July 2004 |
| Term End3: | 30 June 2014 |
| Constituency3: | Portugal |
| Birth Name: | Luís Manuel Capoulas Santos |
| Birth Date: | 22 August 1951 |
| Birth Place: | Montemor-o-Novo, Portugal |
| Party: | Socialist Party (1976–present) |
| Children: | 2 |
| Alma Mater: | University of Évora |
| Term Start5: | 23 October 2015 |
| Term Start6: | 10 April 2002 |
| Term End6: | 19 July 2004 |
| Term Start7: | 6 October 1991 |
| Term End7: | 24 October 1999 |
| Constituency5: | Évora |
| Constituency6: | Évora |
| Constituency7: | Évora |
| Office8: | Member of the Montemor-o-Novo City Council |
| Term Start8: | 12 December 1976 |
| Term End8: | 16 December 1979 |
| Term End5: | 25 March 2024 |
Luís Manuel Capoulas Santos (born 22 August 1951) is a Portuguese politician, who served as Minister of Agriculture, Forests and Rural Development.
Capoulas Santos was born in Montemor-o-Novo. He is a licenciate in Sociology from the University of Évora. He worked as a secondary education teacher before taking a position as a technician in the Ministry of Agriculture.
His political career started in 1976, after being elected as a member of the City Council in his home city of Montemor-o-Novo.
He was first elected to the Assembly of the Republic in 1991, and took office as Minister of Agriculture, Rural Development and Fisheries in 1998, replacing Fernando Gomes da Silva, under whom he was Secretary of State. He kept the office until 2002, when the government led by António Guterres resigned after a landslide defeat in local elections.
Capoulas Santos was elected Member of the European Parliament for the Socialist Party; part of the Party of European Socialists, between 2004 and 2014.[1]
He returned to the Ministry of Agriculture in 2015, after the nomination of António Costa as Prime Minister.