978
| Years | 
|---|
| Millennium | 
| 1st millennium | 
| Centuries | 
| Decades | 
| Years | 
| 978 by topic | 
|---|
| Leaders | 
| Categories | 
| 
 | 
| Gregorian calendar | 978 CMLXXVIII | 
| Ab urbe condita | 1731 | 
| Armenian calendar | 427 ԹՎ ՆԻԷ | 
| Assyrian calendar | 5728 | 
| Balinese saka calendar | 899–900 | 
| Bengali calendar | 384–385 | 
| Berber calendar | 1928 | 
| Buddhist calendar | 1522 | 
| Burmese calendar | 340 | 
| Byzantine calendar | 6486–6487 | 
| Chinese calendar | 丁丑年 (Fire Ox) 3675 or 3468 — to — 戊寅年 (Earth Tiger) 3676 or 3469 | 
| Coptic calendar | 694–695 | 
| Discordian calendar | 2144 | 
| Ethiopian calendar | 970–971 | 
| Hebrew calendar | 4738–4739 | 
| Hindu calendars | |
| - Vikram Samvat | 1034–1035 | 
| - Shaka Samvat | 899–900 | 
| - Kali Yuga | 4078–4079 | 
| Holocene calendar | 10978 | 
| Iranian calendar | 356–357 | 
| Islamic calendar | 367–368 | 
| Japanese calendar | Jōgen 3 / Tengen 1 (天元元年) | 
| Javanese calendar | 879–880 | 
| Julian calendar | 978 CMLXXVIII | 
| Korean calendar | 3311 | 
| Minguo calendar | 934 before ROC 民前934年 | 
| Nanakshahi calendar | −490 | 
| Seleucid era | 1289/1290 AG | 
| Thai solar calendar | 1520–1521 | 
| Tibetan calendar | 阴火牛年 (female Fire-Ox) 1104 or 723 or −49 — to — 阳土虎年 (male Earth-Tiger) 1105 or 724 or −48 | 
Year 978 (CMLXXVIII) was a common year starting on Tuesday of the Julian calendar.