1218
| Years: 1215 1216 1217 - 1218 - 1219 1220 1221 | |
| Decades: 1180s 1190s 1200s - 1210s - 1220s 1230s 1240s | |
| Centuries: 12th century - 13th century - 14th century | |
Events
- Damietta is besieged by the knights of the Fifth Crusade.
- Livonian Brothers of the Sword begin to conquer Estonia.
- Minamoto no Sanetomo becomes Udaijin of Japan.
- Alfonso IX of Castile founds a university in Salamanca.
- Emperor Chukyo of Japan
- Kujo Yoritsune, fourth shogun of the Kamakura shogunate
- May 1 - Rudolph I of Germany
- France - Philippe II, Auguste King of France (reigned from 1180 to 1223)
- Holy See - Honorius III pope (from 1216 to 1227)
- Mongol Empire - Genghis Khan, Mongol Khan (from 1206 to 1227)
- Venice - Pietro Ziani Doge of Venice (ruled from 1205 to 1229)