Year 81 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Decula and Dolabella (or, less frequently, year 673 Ab urbe condita). The denomination 81 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.

Millennium: 1st millennium BC
Centuries:
Decades:
Years:
81 BC in various calendars
Gregorian calendar81 BC
LXXXI BC
Ab urbe condita673
Ancient Egypt eraXXXIII dynasty, 243
- PharaohPtolemy IX Lathyros, 8
Ancient Greek era174th Olympiad, year 4
Assyrian calendar4670
Balinese saka calendarN/A
Bengali calendar−673
Berber calendar870
Buddhist calendar464
Burmese calendar−718
Byzantine calendar5428–5429
Chinese calendar己亥年 (Earth Pig)
2617 or 2410
    — to —
庚子年 (Metal Rat)
2618 or 2411
Coptic calendar−364 – −363
Discordian calendar1086
Ethiopian calendar−88 – −87
Hebrew calendar3680–3681
Hindu calendars
 - Vikram Samvat−24 – −23
 - Shaka SamvatN/A
 - Kali Yuga3020–3021
Holocene calendar9920
Iranian calendar702 BP – 701 BP
Islamic calendar724 BH – 723 BH
Javanese calendarN/A
Julian calendarN/A
Korean calendar2253
Minguo calendar1992 before ROC
民前1992年
Nanakshahi calendar−1548
Seleucid era231/232 AG
Thai solar calendar462–463
Tibetan calendar阴土猪年
(female Earth-Pig)
46 or −335 or −1107
    — to —
阳金鼠年
(male Iron-Rat)
47 or −334 or −1106

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Roman Republic

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China

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