55 BC

55 BC in various calendars
Gregorian calendar	55 BC; LV BC
Ab urbe condita	699
Ancient Egypt era	XXXIII dynasty, 269
- Pharaoh	Ptolemy XII Auletes, 26
Ancient Greek era	181st Olympiad, year 2
Assyrian calendar	4696
Balinese saka calendar	N/A
Bengali calendar	−647
Berber calendar	896
Buddhist calendar	490
Burmese calendar	−692
Byzantine calendar	5454–5455
Chinese calendar	乙丑年 (Wood Ox); 2643 or 2436; — to —; 丙寅年 (Fire Tiger); 2644 or 2437
Coptic calendar	−338 – −337
Discordian calendar	1112
Ethiopian calendar	−62 – −61
Hebrew calendar	3706–3707
Hindu calendars
- Vikram Samvat	2–3
- Shaka Samvat	N/A
- Kali Yuga	3046–3047
Holocene calendar	9946
Iranian calendar	676 BP – 675 BP
Islamic calendar	697 BH – 696 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2279
Minguo calendar	1966 before ROC; 民前1966年
Nanakshahi calendar	−1522
Seleucid era	257/258 AG
Thai solar calendar	488–489
Tibetan calendar	阴木牛年; (female Wood-Ox); 72 or −309 or −1081; — to —; 阳火虎年; (male Fire-Tiger); 73 or −308 or −1080

Millennium:	1st millennium BC
Centuries:	2nd century BC; 1st century BC ; 1st century;
Decades:	70s BC; 60s BC; 50s BC ; 40s BC; 30s BC;
Years:	58 BC; 57 BC; 56 BC; 55 BC ; 54 BC; 53 BC; 52 BC;

Year 55 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Crassus and Pompey (or, less frequently, year 699 Ab urbe condita). The denomination 55 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.

Gregorian calendar	55 BC LV BC
Ab urbe condita	699
Ancient Egypt era	XXXIII dynasty, 269
- Pharaoh	Ptolemy XII Auletes, 26
Ancient Greek era	181st Olympiad, year 2
Assyrian calendar	4696
Balinese saka calendar	N/A
Bengali calendar	−647
Berber calendar	896
Buddhist calendar	490
Burmese calendar	−692
Byzantine calendar	5454–5455
Chinese calendar	乙丑年 (Wood Ox) 2643 or 2436 — to — 丙寅年 (Fire Tiger) 2644 or 2437
Coptic calendar	−338 – −337
Discordian calendar	1112
Ethiopian calendar	−62 – −61
Hebrew calendar	3706–3707
Hindu calendars
- Vikram Samvat	2–3
- Shaka Samvat	N/A
- Kali Yuga	3046–3047
Holocene calendar	9946
Iranian calendar	676 BP – 675 BP
Islamic calendar	697 BH – 696 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2279
Minguo calendar	1966 before ROC 民前1966年
Nanakshahi calendar	−1522
Seleucid era	257/258 AG
Thai solar calendar	488–489
Tibetan calendar	阴木牛年 (female Wood-Ox) 72 or −309 or −1081 — to — 阳火虎年 (male Fire-Tiger) 73 or −308 or −1080