Carlos José Francisco de Paula Gutiérrez de los Ríos y Sarmiento de Sotomayor, 1st Duke of Fernán Núñez was a Spanish diplomat.
- Occupation
- diplomat
- Position held
- ambassador of Spain to France, ambassador of Spain to the United Kingdom of Great Britain and Ireland
- Citizenship
- Spain
- Born
- 1779, January 3, 1779, 1780
- Died
- 1822, November 27, 1822