1398
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1398 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1398 in poetry | 
| Gregorian calendar | 1398 MCCCXCVIII | 
| Ab urbe condita | 2151 | 
| Armenian calendar | 847 ԹՎ ՊԽԷ | 
| Assyrian calendar | 6148 | 
| Balinese saka calendar | 1319–1320 | 
| Bengali calendar | 804–805 | 
| Berber calendar | 2348 | 
| English Regnal year | 21 Ric. 2 – 22 Ric. 2 | 
| Buddhist calendar | 1942 | 
| Burmese calendar | 760 | 
| Byzantine calendar | 6906–6907 | 
| Chinese calendar | 丁丑年 (Fire Ox) 4095 or 3888 — to — 戊寅年 (Earth Tiger) 4096 or 3889 | 
| Coptic calendar | 1114–1115 | 
| Discordian calendar | 2564 | 
| Ethiopian calendar | 1390–1391 | 
| Hebrew calendar | 5158–5159 | 
| Hindu calendars | |
| - Vikram Samvat | 1454–1455 | 
| - Shaka Samvat | 1319–1320 | 
| - Kali Yuga | 4498–4499 | 
| Holocene calendar | 11398 | 
| Igbo calendar | 398–399 | 
| Iranian calendar | 776–777 | 
| Islamic calendar | 800–801 | 
| Japanese calendar | Ōei 5 (応永5年) | 
| Javanese calendar | 1312–1313 | 
| Julian calendar | 1398 MCCCXCVIII | 
| Korean calendar | 3731 | 
| Minguo calendar | 514 before ROC 民前514年 | 
| Nanakshahi calendar | −70 | 
| Thai solar calendar | 1940–1941 | 
| Tibetan calendar | 阴火牛年 (female Fire-Ox) 1524 or 1143 or 371 — to — 阳土虎年 (male Earth-Tiger) 1525 or 1144 or 372 | 
Year 1398 (MCCCXCVIII) was a common year starting on Tuesday of the Julian calendar.