Benedetto (II) Erba Odescalchi (1679–1740) was an Italian Cardinal and Archbishop of Milan from 1712 to 1736.
- Occupation
- Catholic priest, Catholic deacon, Catholic bishop
- Position held
- Roman Catholic Archbishop of Milan, cardinal, titular archbishop, Apostolic Nuncio to Poland
- Citizenship
- Duchy of Milan
- Born
- August 7, 1679
- Died
- December 13, 1740