| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1265 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1265 in poetry |
| Gregorian calendar | 1265 MCCLXV |
| Ab urbe condita | 2018 |
| Armenian calendar | 714 ԹՎ ՉԺԴ |
| Assyrian calendar | 6015 |
| Balinese saka calendar | 1186–1187 |
| Bengali calendar | 672 |
| Berber calendar | 2215 |
| English Regnal year | 49 Hen. 3 – 50 Hen. 3 |
| Buddhist calendar | 1809 |
| Burmese calendar | 627 |
| Byzantine calendar | 6773–6774 |
| Chinese calendar | 甲子年 (Wood Rat) 3962 or 3755 — to — 乙丑年 (Wood Ox) 3963 or 3756 |
| Coptic calendar | 981–982 |
| Discordian calendar | 2431 |
| Ethiopian calendar | 1257–1258 |
| Hebrew calendar | 5025–5026 |
| Hindu calendars | |
| - Vikram Samvat | 1321–1322 |
| - Shaka Samvat | 1186–1187 |
| - Kali Yuga | 4365–4366 |
| Holocene calendar | 11265 |
| Igbo calendar | 265–266 |
| Iranian calendar | 643–644 |
| Islamic calendar | 663–664 |
| Japanese calendar | Bun'ei 2 (文永２年) |
| Javanese calendar | 1175–1176 |
| Julian calendar | 1265 MCCLXV |
| Korean calendar | 3598 |
| Minguo calendar | 647 before ROC 民前647年 |
| Nanakshahi calendar | −203 |
| Thai solar calendar | 1807–1808 |
| Tibetan calendar | 阳木鼠年 (male Wood-Rat) 1391 or 1010 or 238 — to — 阴木牛年 (female Wood-Ox) 1392 or 1011 or 239 |
Year 1265 (MCCLXV) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.