This page is for events that occurred in May in Kingdom Hearts history.
{{#vardefine:show|all}} May 1:
- Nothing happened on this day in Kingdom Hearts history!
May 2:
- Kingdom Hearts II sold its one millionth copy in North America on this day in 2006!
May 3:
- Nothing happened on this day in Kingdom Hearts history!
May 4:
- Nothing happened on this day in Kingdom Hearts history!
May 5:
- Nothing happened on this day in Kingdom Hearts history!
May 6:
- Kingdom Hearts Chain of Memories released in Europe and Australia on this day in 2005!
May 7:
- Nothing happened on this day in Kingdom Hearts history!
May 8:
- Nothing happened on this day in Kingdom Hearts history!
May 9:
- Nothing happened on this day in Kingdom Hearts history!
May 10:
- Nothing happened on this day in Kingdom Hearts history!
May 11:
- Nothing happened on this day in Kingdom Hearts history!
May 12:
- Square Enix announces Kingdom Hearts Unchained χ on this day in 2015!
May 13:
- Nothing happened on this day in Kingdom Hearts history!
May 14:
- Nothing happened on this day in Kingdom Hearts history!
May 15:
- Nothing happened on this day in Kingdom Hearts history!
May 16:
- Nothing happened on this day in Kingdom Hearts history!
May 17:
- Nothing happened on this day in Kingdom Hearts history!
May 18:
- Kingdom Hearts was first announced on this day in 2001!
- Kingdom Hearts III Premiere Invitation was held in Santa Monica, California on this day in 2018!
May 19:
- Nothing happened on this day in Kingdom Hearts history!
May 20:
- Nothing happened on this day in Kingdom Hearts history!
May 21:
- Nothing happened on this day in Kingdom Hearts history!
May 22:
- Nothing happened on this day in Kingdom Hearts history!
May 23:
- Nothing happened on this day in Kingdom Hearts history!
May 24:
- Nothing happened on this day in Kingdom Hearts history!
May 25:
- Nothing happened on this day in Kingdom Hearts history!
May 26:
- Nothing happened on this day in Kingdom Hearts history!
May 27:
- Nothing happened on this day in Kingdom Hearts history!
May 28:
- Nothing happened on this day in Kingdom Hearts history!
May 29:
- Nothing happened on this day in Kingdom Hearts history!
May 30:
- Kingdom Hearts 358/2 Days released in Japan on this day in 2009!
May 31:
- Nothing happened on this day in Kingdom Hearts history!