Literature
- Gabriela Mistral (Chile) in 1945
- Miguel Ángel Asturias (Guatemala) in 1967
- Pablo Neruda (Chile) in 1971
- Gabriel Garcia Marquez (Colombia) in 1982
- Octavio Paz (Mexico) in 1990
Peace
- Carlos Saavedra Lamas (Argentina) in 1936
- Óscar Arias Sánchez (Costa Rica) in 1987
- Rigoberta Menchú Tum (Guatemala) in 1992
- Adolfo Pérez Esquivel (Argentina) in 1980
- Alfonso García Robles (Mexico) in 1982
Chemistry
- Luis F. Leloir (Argentina) in 1970
Medicine
- Bernardo Houssay (Argentina) in 1947
- César Milstein (Argentina, naturalised British) in 1984