Marcus Atius Balbus was a 1st-century BC Roman who served as a praetor in 62 BC; he was a cousin of the general Pompey on his mother's side and a brother-in-law of the Dictator Julius Caesar through his marriage to Caesar's sister Julia Minor. Through his daughter, Atia, he became the maternal grandfather of Augustus the first Roman Emperor.
- Occupation
- politician, military personnel
- Position held
- praetor
- Citizenship
- Ancient Rome
- Born
- 105 BC
- Died
- 52 BC