1226
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1226 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1226 in poetry | 
| Gregorian calendar | 1226 MCCXXVI | 
| Ab urbe condita | 1979 | 
| Armenian calendar | 675 ԹՎ ՈՀԵ | 
| Assyrian calendar | 5976 | 
| Balinese saka calendar | 1147–1148 | 
| Bengali calendar | 632–633 | 
| Berber calendar | 2176 | 
| English Regnal year | 10 Hen. 3 – 11 Hen. 3 | 
| Buddhist calendar | 1770 | 
| Burmese calendar | 588 | 
| Byzantine calendar | 6734–6735 | 
| Chinese calendar | 乙酉年 (Wood Rooster) 3923 or 3716 — to — 丙戌年 (Fire Dog) 3924 or 3717 | 
| Coptic calendar | 942–943 | 
| Discordian calendar | 2392 | 
| Ethiopian calendar | 1218–1219 | 
| Hebrew calendar | 4986–4987 | 
| Hindu calendars | |
| - Vikram Samvat | 1282–1283 | 
| - Shaka Samvat | 1147–1148 | 
| - Kali Yuga | 4326–4327 | 
| Holocene calendar | 11226 | 
| Igbo calendar | 226–227 | 
| Iranian calendar | 604–605 | 
| Islamic calendar | 622–624 | 
| Japanese calendar | Karoku 2 (嘉禄2年) | 
| Javanese calendar | 1134–1135 | 
| Julian calendar | 1226 MCCXXVI | 
| Korean calendar | 3559 | 
| Minguo calendar | 686 before ROC 民前686年 | 
| Nanakshahi calendar | −242 | 
| Thai solar calendar | 1768–1769 | 
| Tibetan calendar | 阴木鸡年 (female Wood-Rooster) 1352 or 971 or 199 — to — 阳火狗年 (male Fire-Dog) 1353 or 972 or 200 | 
Year 1226 (MCCXXVI) was a common year starting on Thursday of the Julian calendar.