|Millennium:||1st millennium BC|
|115 BC by topic|
|Wikimedia Commons has media related to 115 BC.|
Year 115 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Scaurus and Metellus (or, less frequently, year 639 Ab urbe condita). The denomination 115 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
- Gaius Marius is praetor in Rome, he defeats tribes in modern-day Spain.
- Marcus Aemilius Scaurus defeats the Carni Celtic tribes of Northern Italy, leading to their submission to Roman rule.