Back Ҳ. ҟ. 109 Abkhazian 109 v.C. Afrikaans 109 ق م Arabic 109 ق م ARZ 109 e.C. AST E.ə. 109 Azerbaijani 109 v. Kr. BAR 109 да н.э. Byelorussian 109 да н. э. BE-X-OLD 109 г. пр.н.е. Bulgarian
| Millennium: | 1st millennium BC |
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| Years: |
| 109 BC by topic |
| Politics |
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| Categories |
| Gregorian calendar | 109 BC CIX BC |
| Ab urbe condita | 645 |
| Ancient Egypt era | XXXIII dynasty, 215 |
| - Pharaoh | Ptolemy IX Lathyros, 8 |
| Ancient Greek era | 167th Olympiad, year 4 |
| Assyrian calendar | 4642 |
| Balinese saka calendar | N/A |
| Bengali calendar | −701 |
| Berber calendar | 842 |
| Buddhist calendar | 436 |
| Burmese calendar | −746 |
| Byzantine calendar | 5400–5401 |
| Chinese calendar | 辛未年 (Metal Goat) 2589 or 2382 — to — 壬申年 (Water Monkey) 2590 or 2383 |
| Coptic calendar | −392 – −391 |
| Discordian calendar | 1058 |
| Ethiopian calendar | −116 – −115 |
| Hebrew calendar | 3652–3653 |
| Hindu calendars | |
| - Vikram Samvat | −52 – −51 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2992–2993 |
| Holocene calendar | 9892 |
| Iranian calendar | 730 BP – 729 BP |
| Islamic calendar | 752 BH – 751 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 2225 |
| Minguo calendar | 2020 before ROC 民前2020年 |
| Nanakshahi calendar | −1576 |
| Seleucid era | 203/204 AG |
| Thai solar calendar | 434–435 |
| Tibetan calendar | 阴金羊年 (female Iron-Goat) 18 or −363 or −1135 — to — 阳水猴年 (male Water-Monkey) 19 or −362 or −1134 |
Year 109 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Numidicus and Silanus (or, less frequently, year 645 Ab urbe condita) and the Second Year of Yuanfeng. The denomination 109 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.