| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 723 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 723 DCCXXIII |
| Ab urbe condita | 1476 |
| Armenian calendar | 172 ԹՎ ՃՀԲ |
| Assyrian calendar | 5473 |
| Balinese saka calendar | 644–645 |
| Bengali calendar | 130 |
| Berber calendar | 1673 |
| Buddhist calendar | 1267 |
| Burmese calendar | 85 |
| Byzantine calendar | 6231–6232 |
| Chinese calendar | 壬戌年 (Water Dog) 3420 or 3213 — to — 癸亥年 (Water Pig) 3421 or 3214 |
| Coptic calendar | 439–440 |
| Discordian calendar | 1889 |
| Ethiopian calendar | 715–716 |
| Hebrew calendar | 4483–4484 |
| Hindu calendars | |
| - Vikram Samvat | 779–780 |
| - Shaka Samvat | 644–645 |
| - Kali Yuga | 3823–3824 |
| Holocene calendar | 10723 |
| Iranian calendar | 101–102 |
| Islamic calendar | 104–105 |
| Japanese calendar | Yōrō 7 (養老７年) |
| Javanese calendar | 616–617 |
| Julian calendar | 723 DCCXXIII |
| Korean calendar | 3056 |
| Minguo calendar | 1189 before ROC 民前1189年 |
| Nanakshahi calendar | −745 |
| Seleucid era | 1034/1035 AG |
| Thai solar calendar | 1265–1266 |
| Tibetan calendar | 阳水狗年 (male Water-Dog) 849 or 468 or −304 — to — 阴水猪年 (female Water-Pig) 850 or 469 or −303 |
Year 723 (DCCXXIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 723 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.