1504
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1504 by topic | 
|---|
| Arts and science | 
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Works category | 
| 
 | 
| Gregorian calendar | 1504 MDIV | 
| Ab urbe condita | 2257 | 
| Armenian calendar | 953 ԹՎ ՋԾԳ | 
| Assyrian calendar | 6254 | 
| Balinese saka calendar | 1425–1426 | 
| Bengali calendar | 910–911 | 
| Berber calendar | 2454 | 
| English Regnal year | 19 Hen. 7 – 20 Hen. 7 | 
| Buddhist calendar | 2048 | 
| Burmese calendar | 866 | 
| Byzantine calendar | 7012–7013 | 
| Chinese calendar | 癸亥年 (Water Pig) 4201 or 3994 — to — 甲子年 (Wood Rat) 4202 or 3995 | 
| Coptic calendar | 1220–1221 | 
| Discordian calendar | 2670 | 
| Ethiopian calendar | 1496–1497 | 
| Hebrew calendar | 5264–5265 | 
| Hindu calendars | |
| - Vikram Samvat | 1560–1561 | 
| - Shaka Samvat | 1425–1426 | 
| - Kali Yuga | 4604–4605 | 
| Holocene calendar | 11504 | 
| Igbo calendar | 504–505 | 
| Iranian calendar | 882–883 | 
| Islamic calendar | 909–910 | 
| Japanese calendar | Bunki 4 / Eishō 1 (永正元年) | 
| Javanese calendar | 1421–1422 | 
| Julian calendar | 1504 MDIV | 
| Korean calendar | 3837 | 
| Minguo calendar | 408 before ROC 民前408年 | 
| Nanakshahi calendar | 36 | 
| Thai solar calendar | 2046–2047 | 
| Tibetan calendar | 阴水猪年 (female Water-Pig) 1630 or 1249 or 477 — to — 阳木鼠年 (male Wood-Rat) 1631 or 1250 or 478 | 
Year 1504 (MDIV) was a leap year starting on Monday of the Julian calendar.