1012
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1012 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Gregorian calendar | 1012 MXII | 
| Ab urbe condita | 1765 | 
| Armenian calendar | 461 ԹՎ ՆԿԱ | 
| Assyrian calendar | 5762 | 
| Balinese saka calendar | 933–934 | 
| Bengali calendar | 418–419 | 
| Berber calendar | 1962 | 
| English Regnal year | N/A | 
| Buddhist calendar | 1556 | 
| Burmese calendar | 374 | 
| Byzantine calendar | 6520–6521 | 
| Chinese calendar | 辛亥年 (Metal Pig) 3709 or 3502 — to — 壬子年 (Water Rat) 3710 or 3503 | 
| Coptic calendar | 728–729 | 
| Discordian calendar | 2178 | 
| Ethiopian calendar | 1004–1005 | 
| Hebrew calendar | 4772–4773 | 
| Hindu calendars | |
| - Vikram Samvat | 1068–1069 | 
| - Shaka Samvat | 933–934 | 
| - Kali Yuga | 4112–4113 | 
| Holocene calendar | 11012 | 
| Igbo calendar | 12–13 | 
| Iranian calendar | 390–391 | 
| Islamic calendar | 402–403 | 
| Japanese calendar | Kankō 9 / Chōwa 1 (長和元年) | 
| Javanese calendar | 914–915 | 
| Julian calendar | 1012 MXII | 
| Korean calendar | 3345 | 
| Minguo calendar | 900 before ROC 民前900年 | 
| Nanakshahi calendar | −456 | 
| Seleucid era | 1323/1324 AG | 
| Thai solar calendar | 1554–1555 | 
| Tibetan calendar | 阴金猪年 (female Iron-Pig) 1138 or 757 or −15 — to — 阳水鼠年 (male Water-Rat) 1139 or 758 or −14 | 
Year 1012 (MXII) was a leap year starting on Tuesday of the Julian calendar.