1342
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1342 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1342 in poetry | 
| Gregorian calendar | 1342 MCCCXLII | 
| Ab urbe condita | 2095 | 
| Armenian calendar | 791 ԹՎ ՉՂԱ | 
| Assyrian calendar | 6092 | 
| Balinese saka calendar | 1263–1264 | 
| Bengali calendar | 748–749 | 
| Berber calendar | 2292 | 
| English Regnal year | 15 Edw. 3 – 16 Edw. 3 | 
| Buddhist calendar | 1886 | 
| Burmese calendar | 704 | 
| Byzantine calendar | 6850–6851 | 
| Chinese calendar | 辛巳年 (Metal Snake) 4039 or 3832 — to — 壬午年 (Water Horse) 4040 or 3833 | 
| Coptic calendar | 1058–1059 | 
| Discordian calendar | 2508 | 
| Ethiopian calendar | 1334–1335 | 
| Hebrew calendar | 5102–5103 | 
| Hindu calendars | |
| - Vikram Samvat | 1398–1399 | 
| - Shaka Samvat | 1263–1264 | 
| - Kali Yuga | 4442–4443 | 
| Holocene calendar | 11342 | 
| Igbo calendar | 342–343 | 
| Iranian calendar | 720–721 | 
| Islamic calendar | 742–743 | 
| Japanese calendar | Ryakuō 5 / Kōei 1 (康永元年) | 
| Javanese calendar | 1254–1255 | 
| Julian calendar | 1342 MCCCXLII | 
| Korean calendar | 3675 | 
| Minguo calendar | 570 before ROC 民前570年 | 
| Nanakshahi calendar | −126 | 
| Thai solar calendar | 1884–1885 | 
| Tibetan calendar | 阴金蛇年 (female Iron-Snake) 1468 or 1087 or 315 — to — 阳水马年 (male Water-Horse) 1469 or 1088 or 316 | 
Year 1342 (MCCCXLII) was a common year starting on Tuesday and current year of the Julian calendar.