| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: | |
| 603 BC by topic |
| Politics |
|---|
| Categories |
| Gregorian calendar | 603 BC DCIII BC |
| Ab urbe condita | 151 |
| Ancient Egypt era | XXVI dynasty, 62 |
| - Pharaoh | Necho II, 8 |
| Ancient Greek era | 44th Olympiad, year 2 |
| Assyrian calendar | 4148 |
| Balinese saka calendar | N/A |
| Bengali calendar | −1196 – −1195 |
| Berber calendar | 348 |
| Buddhist calendar | −58 |
| Burmese calendar | −1240 |
| Byzantine calendar | 4906–4907 |
| Chinese calendar | 丁巳年 (Fire Snake) 2095 or 1888 — to — 戊午年 (Earth Horse) 2096 or 1889 |
| Coptic calendar | −886 – −885 |
| Discordian calendar | 564 |
| Ethiopian calendar | −610 – −609 |
| Hebrew calendar | 3158–3159 |
| Hindu calendars | |
| - Vikram Samvat | −546 – −545 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2498–2499 |
| Holocene calendar | 9398 |
| Iranian calendar | 1224 BP – 1223 BP |
| Islamic calendar | 1262 BH – 1261 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1731 |
| Minguo calendar | 2514 before ROC 民前2514年 |
| Nanakshahi calendar | −2070 |
| Thai solar calendar | −60 – −59 |
| Tibetan calendar | 阴火蛇年 (female Fire-Snake) −476 or −857 or −1629 — to — 阳土马年 (male Earth-Horse) −475 or −856 or −1628 |
The year 603 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 151 Ab urbe condita . The denomination 601 BC 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.