BC:80

Millennium:	1st Millennium BC
Centuries:	2nd cent. BC – 1st cent. BC – 1st cent.
Decades:	110s BC 100s BC 90s BC – 80s BC – 70s BC 60s BC 50s BC
Years:	83 BC 82 BC 81 BC – 80 BC – 79 BC 78 BC 77 BC

80 in other calendars

Gregorian calendar	80 LXXX
Ab urbe condita	833
Assyrian calendar	4830
Bengali calendar	−513
Berber calendar	1030
Buddhist calendar	624
Burmese calendar	−558
Byzantine calendar	5588–5589
Chinese calendar	己卯年 (Earth Rabbit) 2776 or 2716     — to — 庚辰年 (Metal Dragon) 2777 or 2717
Coptic calendar	−204 – −203
Discordian calendar	1246
Ethiopian calendar	72–73
Hebrew calendar	3840–3841
Hindu calendars
- Vikram Samvat	136–137
- Shaka Samvat	1–2
- Kali Yuga	3180–3181
Holocene calendar	10080
Iranian calendar	542 BP – 541 BP
Islamic calendar	559 BH – 558 BH
Javanese calendar	N/A
Julian calendar	80 LXXX
Korean calendar	2413
Minguo calendar	1832 before ROC 民前1832年
Nanakshahi calendar	−1388
Seleucid era	391/392 AG
Thai solar calendar	622–623

The year 80 BC