Sergio Guerri was an Italian Cardinal of the Roman Catholic Church who served as personal theologian to five popes from 1955 to 1989, and was elevated to the cardinalate in 1969.
- Occupation
- Catholic priest, Catholic bishop
- Position held
- cardinal, titular archbishop
- Citizenship
- Italy, Kingdom of Italy
- Born
- December 25, 1905
- Died
- March 15, 1992
