Marcus Octavius was a Roman tribune in 133 BC and a major rival of Tiberius Gracchus. He was a son of Gnaeus Octavius, the consul in 165 BC, and a brother to another Gnaeus Octavius, the consul in 128 BC. Through his brother, he was the paternal uncle of Gnaeus Octavius, the consul in 87 BC.
- Occupation
- politician
- Position held
- tribune of the plebs
- Citizenship
- Ancient Rome
- Born
- 150 BC, 163 BC
- Died
- 150 BC
