| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1403 by topic |
|---|
| Arts and science |
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1403 in poetry |
| Gregorian calendar | 1403 MCDIII |
| Ab urbe condita | 2156 |
| Armenian calendar | 852 ԹՎ ՊԾԲ |
| Assyrian calendar | 6153 |
| Balinese saka calendar | 1324–1325 |
| Bengali calendar | 810 |
| Berber calendar | 2353 |
| English Regnal year | 4 Hen. 4 – 5 Hen. 4 |
| Buddhist calendar | 1947 |
| Burmese calendar | 765 |
| Byzantine calendar | 6911–6912 |
| Chinese calendar | 壬午年 (Water Horse) 4100 or 3893 — to — 癸未年 (Water Goat) 4101 or 3894 |
| Coptic calendar | 1119–1120 |
| Discordian calendar | 2569 |
| Ethiopian calendar | 1395–1396 |
| Hebrew calendar | 5163–5164 |
| Hindu calendars | |
| - Vikram Samvat | 1459–1460 |
| - Shaka Samvat | 1324–1325 |
| - Kali Yuga | 4503–4504 |
| Holocene calendar | 11403 |
| Igbo calendar | 403–404 |
| Iranian calendar | 781–782 |
| Islamic calendar | 805–806 |
| Japanese calendar | Ōei 10 (応永１０年) |
| Javanese calendar | 1317–1318 |
| Julian calendar | 1403 MCDIII |
| Korean calendar | 3736 |
| Minguo calendar | 509 before ROC 民前509年 |
| Nanakshahi calendar | −65 |
| Thai solar calendar | 1945–1946 |
| Tibetan calendar | 阳水马年 (male Water-Horse) 1529 or 1148 or 376 — to — 阴水羊年 (female Water-Goat) 1530 or 1149 or 377 |
Year 1403 (MCDIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.