| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1129 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1129 in poetry |
| Gregorian calendar | 1129 MCXXIX |
| Ab urbe condita | 1882 |
| Armenian calendar | 578 ԹՎ ՇՀԸ |
| Assyrian calendar | 5879 |
| Balinese saka calendar | 1050–1051 |
| Bengali calendar | 536 |
| Berber calendar | 2079 |
| English Regnal year | 29 Hen. 1 – 30 Hen. 1 |
| Buddhist calendar | 1673 |
| Burmese calendar | 491 |
| Byzantine calendar | 6637–6638 |
| Chinese calendar | 戊申年 (Earth Monkey) 3826 or 3619 — to — 己酉年 (Earth Rooster) 3827 or 3620 |
| Coptic calendar | 845–846 |
| Discordian calendar | 2295 |
| Ethiopian calendar | 1121–1122 |
| Hebrew calendar | 4889–4890 |
| Hindu calendars | |
| - Vikram Samvat | 1185–1186 |
| - Shaka Samvat | 1050–1051 |
| - Kali Yuga | 4229–4230 |
| Holocene calendar | 11129 |
| Igbo calendar | 129–130 |
| Iranian calendar | 507–508 |
| Islamic calendar | 523–524 |
| Japanese calendar | Daiji 4 (大治４年) |
| Javanese calendar | 1034–1035 |
| Julian calendar | 1129 MCXXIX |
| Korean calendar | 3462 |
| Minguo calendar | 783 before ROC 民前783年 |
| Nanakshahi calendar | −339 |
| Seleucid era | 1440/1441 AG |
| Thai solar calendar | 1671–1672 |
| Tibetan calendar | 阳土猴年 (male Earth-Monkey) 1255 or 874 or 102 — to — 阴土鸡年 (female Earth-Rooster) 1256 or 875 or 103 |
Year 1129 (MCXXIX) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.