| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 409 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 409 CDIX |
| Ab urbe condita | 1162 |
| Assyrian calendar | 5159 |
| Balinese saka calendar | 330–331 |
| Bengali calendar | −184 |
| Berber calendar | 1359 |
| Buddhist calendar | 953 |
| Burmese calendar | −229 |
| Byzantine calendar | 5917–5918 |
| Chinese calendar | 戊申年 (Earth Monkey) 3106 or 2899 — to — 己酉年 (Earth Rooster) 3107 or 2900 |
| Coptic calendar | 125–126 |
| Discordian calendar | 1575 |
| Ethiopian calendar | 401–402 |
| Hebrew calendar | 4169–4170 |
| Hindu calendars | |
| - Vikram Samvat | 465–466 |
| - Shaka Samvat | 330–331 |
| - Kali Yuga | 3509–3510 |
| Holocene calendar | 10409 |
| Iranian calendar | 213 BP – 212 BP |
| Islamic calendar | 220 BH – 219 BH |
| Javanese calendar | 292–293 |
| Julian calendar | 409 CDIX |
| Korean calendar | 2742 |
| Minguo calendar | 1503 before ROC 民前1503年 |
| Nanakshahi calendar | −1059 |
| Seleucid era | 720/721 AG |
| Thai solar calendar | 951–952 |
| Tibetan calendar | 阳土猴年 (male Earth-Monkey) 535 or 154 or −618 — to — 阴土鸡年 (female Earth-Rooster) 536 or 155 or −617 |
Year 409 (CDIX) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Honorius and Theodosius (or, less frequently, year 1162 Ab urbe condita). The denomination 409 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.