1343
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1343 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1343 in poetry | 
| Gregorian calendar | 1343 MCCCXLIII | 
| Ab urbe condita | 2096 | 
| Armenian calendar | 792 ԹՎ ՉՂԲ | 
| Assyrian calendar | 6093 | 
| Balinese saka calendar | 1264–1265 | 
| Bengali calendar | 749–750 | 
| Berber calendar | 2293 | 
| English Regnal year | 16 Edw. 3 – 17 Edw. 3 | 
| Buddhist calendar | 1887 | 
| Burmese calendar | 705 | 
| Byzantine calendar | 6851–6852 | 
| Chinese calendar | 壬午年 (Water Horse) 4040 or 3833 — to — 癸未年 (Water Goat) 4041 or 3834 | 
| Coptic calendar | 1059–1060 | 
| Discordian calendar | 2509 | 
| Ethiopian calendar | 1335–1336 | 
| Hebrew calendar | 5103–5104 | 
| Hindu calendars | |
| - Vikram Samvat | 1399–1400 | 
| - Shaka Samvat | 1264–1265 | 
| - Kali Yuga | 4443–4444 | 
| Holocene calendar | 11343 | 
| Igbo calendar | 343–344 | 
| Iranian calendar | 721–722 | 
| Islamic calendar | 743–744 | 
| Japanese calendar | Kōei 2 (康永2年) | 
| Javanese calendar | 1255–1256 | 
| Julian calendar | 1343 MCCCXLIII | 
| Korean calendar | 3676 | 
| Minguo calendar | 569 before ROC 民前569年 | 
| Nanakshahi calendar | −125 | 
| Thai solar calendar | 1885–1886 | 
| Tibetan calendar | 阳水马年 (male Water-Horse) 1469 or 1088 or 316 — to — 阴水羊年 (female Water-Goat) 1470 or 1089 or 317 | 
Year 1343 (MCCCXLIII) was a common year starting on Wednesday of the Julian calendar.