891

Millennium: 1st millennium
Centuries:
Decades:
Years:
891 in various calendars
Gregorian calendar891
DCCCXCI
Ab urbe condita1644
Armenian calendar340
ԹՎ ՅԽ
Assyrian calendar5641
Balinese saka calendar812–813
Bengali calendar298
Berber calendar1841
Buddhist calendar1435
Burmese calendar253
Byzantine calendar6399–6400
Chinese calendar庚戌年 (Metal Dog)
3588 or 3381
    — to —
辛亥年 (Metal Pig)
3589 or 3382
Coptic calendar607–608
Discordian calendar2057
Ethiopian calendar883–884
Hebrew calendar4651–4652
Hindu calendars
 - Vikram Samvat947–948
 - Shaka Samvat812–813
 - Kali Yuga3991–3992
Holocene calendar10891
Iranian calendar269–270
Islamic calendar277–278
Japanese calendarKanpyō 3
(寛平3年)
Javanese calendar789–790
Julian calendar891
DCCCXCI
Korean calendar3224
Minguo calendar1021 before ROC
民前1021年
Nanakshahi calendar−577
Seleucid era1202/1203 AG
Thai solar calendar1433–1434
Tibetan calendar阳金狗年
(male Iron-Dog)
1017 or 636 or −136
    — to —
阴金猪年
(female Iron-Pig)
1018 or 637 or −135
Pope Formosus (c. 816–896)

Year 891 (DCCCXCI) was a common year starting on Friday (link will display the full calendar) of the Julian calendar.