| Millennium: | 1st millennium |
|---|---|
| Centuries: | 6th century – 7th century – 8th century |
| Decades: | 580s 590s 600s – 610s – 620s 630s 640s |
| Years: | 609 610 611 – 612 – 613 614 615 |
| 612 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 612 DCXII |
| Ab urbe condita | 1365 |
| Armenian calendar | 61 ԹՎ ԿԱ |
| Assyrian calendar | 5362 |
| Bahá'í calendar | -1232–-1231 |
| Bengali calendar | 19 |
| Berber calendar | 1562 |
| English Regnal year | N/A |
| Buddhist calendar | 1156 |
| Burmese calendar | -26 |
| Byzantine calendar | 6120–6121 |
| Chinese calendar | 辛未年十一月廿三日 (3248/3308-11-23) — to —
壬申年十二月初四日(3249/3309-12-4) |
| Coptic calendar | 328–329 |
| Ethiopian calendar | 604–605 |
| Hebrew calendar | 4372–4373 |
| Hindu calendars | |
| - Vikram Samvat | 668–669 |
| - Shaka Samvat | 534–535 |
| - Kali Yuga | 3713–3714 |
| Holocene calendar | 10612 |
| Iranian calendar | 10 BP – 9 BP |
| Islamic calendar | 10 BH – 9 BH |
| Japanese calendar | |
| Korean calendar | 2945 |
| Minguo calendar | 1300 before ROC 民前1300年 |
| Thai solar calendar | 1155 |
Year 612 (DCXII) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 612 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.