Millennium: 2nd millennium
1888 in various calendars
Gregorian calendar1888
Ab urbe condita2641
Armenian calendar1337
Assyrian calendar6638
Bahá'í calendar44–45
Balinese saka calendar1809–1810
Bengali calendar1295
Berber calendar2838
British Regnal year51 Vict. 1 – 52 Vict. 1
Buddhist calendar2432
Burmese calendar1250
Byzantine calendar7396–7397
Chinese calendar丁亥(Fire Pig)
4584 or 4524
    — to —
戊子年 (Earth Rat)
4585 or 4525
Coptic calendar1604–1605
Discordian calendar3054
Ethiopian calendar1880–1881
Hebrew calendar5648–5649
Hindu calendars
 - Vikram Samvat1944–1945
 - Shaka Samvat1809–1810
 - Kali Yuga4988–4989
Holocene calendar11888
Igbo calendar888–889
Iranian calendar1266–1267
Islamic calendar1305–1306
Japanese calendarMeiji 21
Javanese calendar1817–1818
Julian calendarGregorian minus 12 days
Korean calendar4221
Minguo calendar24 before ROC
Nanakshahi calendar420
Thai solar calendar2430–2431
Tibetan calendar阴火猪年
(female Fire-Pig)
2014 or 1633 or 861
    — to —
(male Earth-Rat)
2015 or 1634 or 862

1888 (MDCCCLXXXVIII) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Friday of the Julian calendar, the 1888th year of the Common Era (CE) and Anno Domini (AD) designations, the 888th year of the 2nd millennium, the 88th year of the 19th century, and the 9th year of the 1880s decade. As of the start of 1888, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.

In Germany, 1888 is known as the Year of the Three Emperors. Currently, it is the year that, when written in Roman numerals, has the most digits (13). The next year that also has 13 digits is the year 2388. The record will be surpassed as late as 2888, which has 14 digits.