| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1338 by topic | |
| Leaders | |
| Political entities - State leaders - Religious leaders | |
| Birth and death categories | |
| Births - Deaths | |
| Establishments and disestablishments categories | |
| Establishments - Disestablishments | |
| Art and literature | |
| 1338 in poetry | |
| Gregorian calendar | 1338 MCCCXXXVIII |
| Ab urbe condita | 2091 |
| Armenian calendar | 787 ԹՎ ՉՁԷ |
| Assyrian calendar | 6088 |
| Bengali calendar | 745 |
| Berber calendar | 2288 |
| English Regnal year | 11 Edw. 3 – 12 Edw. 3 |
| Buddhist calendar | 1882 |
| Burmese calendar | 700 |
| Byzantine calendar | 6846–6847 |
| Chinese calendar |
丁丑年 (Fire Ox) 4034 or 3974 — to — 戊寅年 (Earth Tiger) 4035 or 3975 |
| Coptic calendar | 1054–1055 |
| Discordian calendar | 2504 |
| Ethiopian calendar | 1330–1331 |
| Hebrew calendar | 5098–5099 |
| Hindu calendars | |
| - Vikram Samvat | 1394–1395 |
| - Shaka Samvat | 1259–1260 |
| - Kali Yuga | 4438–4439 |
| Holocene calendar | 11338 |
| Igbo calendar | 338–339 |
| Iranian calendar | 716–717 |
| Islamic calendar | 738–739 |
| Japanese calendar |
Shōkei 7 / Ryakuō 1 (暦応元年) |
| Javanese calendar | 1250–1251 |
| Julian calendar | 1338 MCCCXXXVIII |
| Korean calendar | 3671 |
| Minguo calendar | 574 before ROC 民前574年 |
| Nanakshahi calendar | −130 |
| Thai solar calendar | 1880–1881 |
Year 1338 (MCCCXXXVIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.