| Millennium: | 1st millennium |
|---|---|
| Centuries: | 1st century – 2nd century – 3rd century |
| Decades: | 70s 80s 90s – 100s – 110s 120s 130s |
| Years: | 106 107 108 – 109 – 110 111 112 |
| 109 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 109 CIX |
| Ab urbe condita | 862 |
| Armenian calendar | N/A |
| Assyrian calendar | 4859 |
| Bahá'í calendar | -1735–-1734 |
| Bengali calendar | -484 |
| Berber calendar | 1059 |
| English Regnal year | N/A |
| Buddhist calendar | 653 |
| Burmese calendar | -529 |
| Byzantine calendar | 5617–5618 |
| Chinese calendar | 戊申年十一月十二日 (2745/2805-11-12) — to —
己酉年十一月廿二日(2746/2806-11-22) |
| Coptic calendar | -175–-174 |
| Ethiopian calendar | 101–102 |
| Hebrew calendar | 3869–3870 |
| Hindu calendars | |
| - Vikram Samvat | 165–166 |
| - Shaka Samvat | 31–32 |
| - Kali Yuga | 3210–3211 |
| Holocene calendar | 10109 |
| Iranian calendar | 513 BP – 512 BP |
| Islamic calendar | 529 BH – 528 BH |
| Japanese calendar | |
| Korean calendar | 2442 |
| Minguo calendar | 1803 before ROC 民前1803年 |
| Thai solar calendar | 652 |
Year 109 (CIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Palma and Tullus (or, less frequently, year 862 Ab urbe condita). The denomination 109 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.