| Centuries: | 6th century - 7th century - 8th century |
| Decades: | 640s 650s 660s - 670s - 680s 690s 700s |
| Years: | 671 672 673 - 674 - 675 676 677 |
| 674 by topic | |
| Politics | |
| State leaders - Sovereign states | |
| Birth and death categories | |
| Births - Deaths | |
| Establishment and disestablishment categories | |
| Establishments - Disestablishments | |
| Gregorian calendar | 674 DCLXXIV |
| Ab urbe condita | 1427 |
| Armenian calendar | 123 ԹՎ ՃԻԳ |
| Bahá'í calendar | -1170 – -1169 |
| Berber calendar | 1624 |
| Buddhist calendar | 1218 |
| Burmese calendar | 36 |
| Chinese calendar | 3310/3370-11-19 (癸酉年十一月十九日) — to —
3311/3371-11-29(甲戌年十一月廿九日) |
| Coptic calendar | 390 – 391 |
| Ethiopian calendar | 666 – 667 |
| Hebrew calendar | 4434 – 4435 |
| Hindu calendars | |
| - Vikram Samvat | 729 – 730 |
| - Shaka Samvat | 596 – 597 |
| - Kali Yuga | 3775 – 3776 |
| Holocene calendar | 10674 |
| Iranian calendar | 52 – 53 |
| Islamic calendar | 54 – 55 |
| Japanese calendar | |
| Korean calendar | 3007 |
| Thai solar calendar | 1217 |