| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | 3rd century BC – 2nd century BC – 1st century BC |
| Decades: | 130s BC 120s BC 110s BC – 100s BC – 90s BC 80s BC 70s BC |
| Years: | 111 BC 110 BC 109 BC – 108 BC – 107 BC 106 BC 105 BC |
| 108 BC by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 108 BC |
| Ab urbe condita | 646 |
| Armenian calendar | N/A |
| Assyrian calendar | 4643 |
| Bahá'í calendar | -1951–-1950 |
| Bengali calendar | -700 |
| Berber calendar | 843 |
| English Regnal year | N/A |
| Buddhist calendar | 437 |
| Burmese calendar | -745 |
| Byzantine calendar | 5401–5402 |
| Chinese calendar | 壬申年 (2529/2589) — to —
癸酉年(2530/2590) |
| Coptic calendar | -391–-390 |
| Ethiopian calendar | -115–-114 |
| Hebrew calendar | 3653–3654 |
| Hindu calendars | |
| - Vikram Samvat | -51–-50 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2994–2995 |
| Holocene calendar | 9893 |
| Iranian calendar | 729 BP – 728 BP |
| Islamic calendar | 751 BH – 750 BH |
| Japanese calendar | |
| Korean calendar | 2226 |
| Minguo calendar | 2019 before ROC 民前2019年 |
| Thai solar calendar | 436 |
Year 108 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Galba and Hortensius/Scaurus (or, less frequently, year 646 Ab urbe condita). The denomination 108 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.