| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| AD 129 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 129 CXXIX |
| Ab urbe condita | 882 |
| Assyrian calendar | 4879 |
| Balinese saka calendar | 50–51 |
| Bengali calendar | −464 |
| Berber calendar | 1079 |
| Buddhist calendar | 673 |
| Burmese calendar | −509 |
| Byzantine calendar | 5637–5638 |
| Chinese calendar | 戊辰年 (Earth Dragon) 2826 or 2619 — to — 己巳年 (Earth Snake) 2827 or 2620 |
| Coptic calendar | −155 – −154 |
| Discordian calendar | 1295 |
| Ethiopian calendar | 121–122 |
| Hebrew calendar | 3889–3890 |
| Hindu calendars | |
| - Vikram Samvat | 185–186 |
| - Shaka Samvat | 50–51 |
| - Kali Yuga | 3229–3230 |
| Holocene calendar | 10129 |
| Iranian calendar | 493 BP – 492 BP |
| Islamic calendar | 508 BH – 507 BH |
| Javanese calendar | 4–5 |
| Julian calendar | 129 CXXIX |
| Korean calendar | 2462 |
| Minguo calendar | 1783 before ROC 民前1783年 |
| Nanakshahi calendar | −1339 |
| Seleucid era | 440/441 AG |
| Thai solar calendar | 671–672 |
| Tibetan calendar | 阳土龙年 (male Earth-Dragon) 255 or −126 or −898 — to — 阴土蛇年 (female Earth-Snake) 256 or −125 or −897 |
Year 129 (CXXIX) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Celsus and Marcellus (or, less frequently, year 882 Ab urbe condita). The denomination 129 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.