525 BC

Millennium: 1st millennium BC
Centuries:
Decades:
Years:
525 BC in various calendars
Gregorian calendar525 BC
DXXV BC
Ab urbe condita229
Ancient Egypt eraXXVII dynasty, 1
- PharaohCambyses II of Persia, 1
Ancient Greek era63rd Olympiad, year 4
Assyrian calendar4226
Balinese saka calendarN/A
Bengali calendar−1117
Berber calendar426
Buddhist calendar20
Burmese calendar−1162
Byzantine calendar4984–4985
Chinese calendar乙亥年 (Wood Pig)
2173 or 1966
    — to —
丙子年 (Fire Rat)
2174 or 1967
Coptic calendar−808 – −807
Discordian calendar642
Ethiopian calendar−532 – −531
Hebrew calendar3236–3237
Hindu calendars
 - Vikram Samvat−468 – −467
 - Shaka SamvatN/A
 - Kali Yuga2576–2577
Holocene calendar9476
Iranian calendar1146 BP – 1145 BP
Islamic calendar1181 BH – 1180 BH
Javanese calendarN/A
Julian calendarN/A
Korean calendar1809
Minguo calendar2436 before ROC
民前2436年
Nanakshahi calendar−1992
Thai solar calendar18–19
Tibetan calendar阴木猪年
(female Wood-Pig)
−398 or −779 or −1551
    — to —
阳火鼠年
(male Fire-Rat)
−397 or −778 or −1550

The year 525 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 229 Ab urbe condita. The denomination 525 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.