977
| Years | 
|---|
| Millennium | 
| 1st millennium | 
| Centuries | 
| Decades | 
| Years | 
| 977 by topic | 
|---|
| Leaders | 
| Categories | 
| 
 | 
| Gregorian calendar | 977 CMLXXVII | 
| Ab urbe condita | 1730 | 
| Armenian calendar | 426 ԹՎ ՆԻԶ | 
| Assyrian calendar | 5727 | 
| Balinese saka calendar | 898–899 | 
| Bengali calendar | 383–384 | 
| Berber calendar | 1927 | 
| Buddhist calendar | 1521 | 
| Burmese calendar | 339 | 
| Byzantine calendar | 6485–6486 | 
| Chinese calendar | 丙子年 (Fire Rat) 3674 or 3467 — to — 丁丑年 (Fire Ox) 3675 or 3468 | 
| Coptic calendar | 693–694 | 
| Discordian calendar | 2143 | 
| Ethiopian calendar | 969–970 | 
| Hebrew calendar | 4737–4738 | 
| Hindu calendars | |
| - Vikram Samvat | 1033–1034 | 
| - Shaka Samvat | 898–899 | 
| - Kali Yuga | 4077–4078 | 
| Holocene calendar | 10977 | 
| Iranian calendar | 355–356 | 
| Islamic calendar | 366–367 | 
| Japanese calendar | Jōgen 2 (貞元2年) | 
| Javanese calendar | 878–879 | 
| Julian calendar | 977 CMLXXVII | 
| Korean calendar | 3310 | 
| Minguo calendar | 935 before ROC 民前935年 | 
| Nanakshahi calendar | −491 | 
| Seleucid era | 1288/1289 AG | 
| Thai solar calendar | 1519–1520 | 
| Tibetan calendar | 阳火鼠年 (male Fire-Rat) 1103 or 722 or −50 — to — 阴火牛年 (female Fire-Ox) 1104 or 723 or −49 | 
Year 977 (CMLXXVII) was a common year starting on Monday of the Julian calendar.