1523
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1523 by topic | 
|---|
| Arts and science | 
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Works category | 
| 
 | 
| Gregorian calendar | 1523 MDXXIII | 
| Ab urbe condita | 2276 | 
| Armenian calendar | 972 ԹՎ ՋՀԲ | 
| Assyrian calendar | 6273 | 
| Balinese saka calendar | 1444–1445 | 
| Bengali calendar | 929–930 | 
| Berber calendar | 2473 | 
| English Regnal year | 14 Hen. 8 – 15 Hen. 8 | 
| Buddhist calendar | 2067 | 
| Burmese calendar | 885 | 
| Byzantine calendar | 7031–7032 | 
| Chinese calendar | 壬午年 (Water Horse) 4220 or 4013 — to — 癸未年 (Water Goat) 4221 or 4014 | 
| Coptic calendar | 1239–1240 | 
| Discordian calendar | 2689 | 
| Ethiopian calendar | 1515–1516 | 
| Hebrew calendar | 5283–5284 | 
| Hindu calendars | |
| - Vikram Samvat | 1579–1580 | 
| - Shaka Samvat | 1444–1445 | 
| - Kali Yuga | 4623–4624 | 
| Holocene calendar | 11523 | 
| Igbo calendar | 523–524 | 
| Iranian calendar | 901–902 | 
| Islamic calendar | 929–930 | 
| Japanese calendar | Daiei 3 (大永3年) | 
| Javanese calendar | 1440–1442 | 
| Julian calendar | 1523 MDXXIII | 
| Korean calendar | 3856 | 
| Minguo calendar | 389 before ROC 民前389年 | 
| Nanakshahi calendar | 55 | 
| Thai solar calendar | 2065–2066 | 
| Tibetan calendar | 阳水马年 (male Water-Horse) 1649 or 1268 or 496 — to — 阴水羊年 (female Water-Goat) 1650 or 1269 or 497 | 
Year 1523 (MDXXIII) was a common year starting on Thursday of the Julian calendar.