Ricardo Augustus Guerreiro Baptista Leite (born 31 May 1980) is a Portuguese medical doctor, university professor, and politician.

[7] Baptista Leite enrolled at the Faculdade de Ciências Médicas of the NOVA University Lisbon, and obtained his medical degree in 2004.

[9] Since 2014, he is in a relationship with the Portuguese lawyer and politician and European Oumbusman, Teresa Anjinho, and they have one son together born in 2016.

[6] Baptista Leite is the Head of Public Health within the Research Center of the Instituto de Ciências da Saúde at the Catholic University of Portugal.

[17][18][19] Baptista Leite was named, in 2016, by The Economist as a HCV Change Maker in recognition of his leadership in the field of hepatitis C.[20][21] The following year, he founded Unite – Global Parliamentarians Network to end HIV/AIDS, Viral Hepatitis and other Infectious Diseases, under the auspices of UNAIDS and committed to ending these global health threats, in accordance with the Sustainable Development Goals.

[29][30] Baptista Leite was introduced into party politics in 2000 by Portugal's President Marcelo Rebelo de Sousa.

[2] Having left the Social Democratic Youth at the age limit of 30, Baptista Leite was voted as a lifetime honorary member of the organization at their XXI National Convention in 2010, in this same year as a member of the National Committee for Reviewing the PSD Political Program, "GENEPSD", mainly on issues associated with healthcare and local government.

[32] Baptista Leite served as Director of the National Studies Cabinet,[33] and also chaired two educational political courses, where he promoted a debate between two former Prime Ministers of Portugal, from different parties, Francisco Pinto Balsemão from PSD and Mário Soares from PS.

[43] In 2019, Baptista Leite was elected vice-president of the parliamentary board of the Social Democratic Party, responsible for Health, Culture and Communication, Agriculture, and member of the Foreign Affairs committee.