| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| AD 103 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 103 CIII |
| Ab urbe condita | 856 |
| Assyrian calendar | 4853 |
| Balinese saka calendar | 24–25 |
| Bengali calendar | −490 |
| Berber calendar | 1053 |
| Buddhist calendar | 647 |
| Burmese calendar | −535 |
| Byzantine calendar | 5611–5612 |
| Chinese calendar | 壬寅年 (Water Tiger) 2800 or 2593 — to — 癸卯年 (Water Rabbit) 2801 or 2594 |
| Coptic calendar | −181 – −180 |
| Discordian calendar | 1269 |
| Ethiopian calendar | 95–96 |
| Hebrew calendar | 3863–3864 |
| Hindu calendars | |
| - Vikram Samvat | 159–160 |
| - Shaka Samvat | 24–25 |
| - Kali Yuga | 3203–3204 |
| Holocene calendar | 10103 |
| Iranian calendar | 519 BP – 518 BP |
| Islamic calendar | 535 BH – 534 BH |
| Javanese calendar | N/A |
| Julian calendar | 103 CIII |
| Korean calendar | 2436 |
| Minguo calendar | 1809 before ROC 民前1809年 |
| Nanakshahi calendar | −1365 |
| Seleucid era | 414/415 AG |
| Thai solar calendar | 645–646 |
| Tibetan calendar | 阳水虎年 (male Water-Tiger) 229 or −152 or −924 — to — 阴水兔年 (female Water-Rabbit) 230 or −151 or −923 |
103 (CIII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Maximus (or, less frequently, year 856 Ab urbe condita). The denomination 103 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.