993
| Years | 
|---|
| Millennium | 
| 1st millennium | 
| Centuries | 
| Decades | 
| Years | 
| 993 by topic | 
|---|
| Leaders | 
| Categories | 
| 
 | 
| Gregorian calendar | 993 CMXCIII | 
| Ab urbe condita | 1746 | 
| Armenian calendar | 442 ԹՎ ՆԽԲ | 
| Assyrian calendar | 5743 | 
| Balinese saka calendar | 914–915 | 
| Bengali calendar | 399–400 | 
| Berber calendar | 1943 | 
| Buddhist calendar | 1537 | 
| Burmese calendar | 355 | 
| Byzantine calendar | 6501–6502 | 
| Chinese calendar | 壬辰年 (Water Dragon) 3690 or 3483 — to — 癸巳年 (Water Snake) 3691 or 3484 | 
| Coptic calendar | 709–710 | 
| Discordian calendar | 2159 | 
| Ethiopian calendar | 985–986 | 
| Hebrew calendar | 4753–4754 | 
| Hindu calendars | |
| - Vikram Samvat | 1049–1050 | 
| - Shaka Samvat | 914–915 | 
| - Kali Yuga | 4093–4094 | 
| Holocene calendar | 10993 | 
| Iranian calendar | 371–372 | 
| Islamic calendar | 382–383 | 
| Japanese calendar | Shōryaku 4 (正暦4年) | 
| Javanese calendar | 894–895 | 
| Julian calendar | 993 CMXCIII | 
| Korean calendar | 3326 | 
| Minguo calendar | 919 before ROC 民前919年 | 
| Nanakshahi calendar | −475 | 
| Seleucid era | 1304/1305 AG | 
| Thai solar calendar | 1535–1536 | 
| Tibetan calendar | 阳水龙年 (male Water-Dragon) 1119 or 738 or −34 — to — 阴水蛇年 (female Water-Snake) 1120 or 739 or −33 | 
Year 993 (CMXCIII) was a common year starting on Sunday of the Julian calendar.