| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 691 BC by topic |
| Politics |
|---|
| Categories |
| Gregorian calendar | 691 BC DCXCI BC |
| Ab urbe condita | 63 |
| Ancient Egypt era | XXV dynasty, 62 |
| - Pharaoh | Shebitku, 17 |
| Ancient Greek era | 22nd Olympiad, year 2 |
| Assyrian calendar | 4060 |
| Balinese saka calendar | N/A |
| Bengali calendar | −1283 |
| Berber calendar | 260 |
| Buddhist calendar | −146 |
| Burmese calendar | −1328 |
| Byzantine calendar | 4818–4819 |
| Chinese calendar | 己丑年 (Earth Ox) 2007 or 1800 — to — 庚寅年 (Metal Tiger) 2008 or 1801 |
| Coptic calendar | −974 – −973 |
| Discordian calendar | 476 |
| Ethiopian calendar | −698 – −697 |
| Hebrew calendar | 3070–3071 |
| Hindu calendars | |
| - Vikram Samvat | −634 – −633 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2410–2411 |
| Holocene calendar | 9310 |
| Iranian calendar | 1312 BP – 1311 BP |
| Islamic calendar | 1352 BH – 1351 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1643 |
| Minguo calendar | 2602 before ROC 民前2602年 |
| Nanakshahi calendar | −2158 |
| Thai solar calendar | −148 – −147 |
| Tibetan calendar | 阴土牛年 (female Earth-Ox) −564 or −945 or −1717 — to — 阳金虎年 (male Iron-Tiger) −563 or −944 or −1716 |
The year 691 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 63 Ab urbe condita . The denomination 691 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.