829
| Years | 
|---|
| Millennium | 
| 1st millennium | 
| Centuries | 
| Decades | 
| Years | 
| 829 by topic | 
|---|
| Leaders | 
| Categories | 
| 
 | 
| Gregorian calendar | 829 DCCCXXIX | 
| Ab urbe condita | 1582 | 
| Armenian calendar | 278 ԹՎ ՄՀԸ | 
| Assyrian calendar | 5579 | 
| Balinese saka calendar | 750–751 | 
| Bengali calendar | 235–236 | 
| Berber calendar | 1779 | 
| Buddhist calendar | 1373 | 
| Burmese calendar | 191 | 
| Byzantine calendar | 6337–6338 | 
| Chinese calendar | 戊申年 (Earth Monkey) 3526 or 3319 — to — 己酉年 (Earth Rooster) 3527 or 3320 | 
| Coptic calendar | 545–546 | 
| Discordian calendar | 1995 | 
| Ethiopian calendar | 821–822 | 
| Hebrew calendar | 4589–4590 | 
| Hindu calendars | |
| - Vikram Samvat | 885–886 | 
| - Shaka Samvat | 750–751 | 
| - Kali Yuga | 3929–3930 | 
| Holocene calendar | 10829 | 
| Iranian calendar | 207–208 | 
| Islamic calendar | 213–214 | 
| Japanese calendar | Tenchō 6 (天長6年) | 
| Javanese calendar | 725–726 | 
| Julian calendar | 829 DCCCXXIX | 
| Korean calendar | 3162 | 
| Minguo calendar | 1083 before ROC 民前1083年 | 
| Nanakshahi calendar | −639 | 
| Seleucid era | 1140/1141 AG | 
| Thai solar calendar | 1371–1372 | 
| Tibetan calendar | 阳土猴年 (male Earth-Monkey) 955 or 574 or −198 — to — 阴土鸡年 (female Earth-Rooster) 956 or 575 or −197 | 
Year 829 (DCCCXXIX) was a common year starting on Friday of the Julian calendar.