| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| AD 23 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | AD 23 XXIII |
| Ab urbe condita | 776 |
| Assyrian calendar | 4773 |
| Balinese saka calendar | N/A |
| Bengali calendar | −570 |
| Berber calendar | 973 |
| Buddhist calendar | 567 |
| Burmese calendar | −615 |
| Byzantine calendar | 5531–5532 |
| Chinese calendar | 壬午年 (Water Horse) 2720 or 2513 — to — 癸未年 (Water Goat) 2721 or 2514 |
| Coptic calendar | −261 – −260 |
| Discordian calendar | 1189 |
| Ethiopian calendar | 15–16 |
| Hebrew calendar | 3783–3784 |
| Hindu calendars | |
| - Vikram Samvat | 79–80 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 3123–3124 |
| Holocene calendar | 10023 |
| Iranian calendar | 599 BP – 598 BP |
| Islamic calendar | 617 BH – 616 BH |
| Javanese calendar | N/A |
| Julian calendar | AD 23 XXIII |
| Korean calendar | 2356 |
| Minguo calendar | 1889 before ROC 民前1889年 |
| Nanakshahi calendar | −1445 |
| Seleucid era | 334/335 AG |
| Thai solar calendar | 565–566 |
| Tibetan calendar | 阳水马年 (male Water-Horse) 149 or −232 or −1004 — to — 阴水羊年 (female Water-Goat) 150 or −231 or −1003 |
AD 23 (XXIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Pollio and Vetus (or, less frequently, year 776 Ab urbe condita). The denomination AD 23 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.