| Tournament details | |
|---|---|
| Country | Japan |
| Teams | 88 |
| Final positions | |
| Champions | Kashima Antlers (4th title) |
| Runner-up | Shimizu S-Pulse |
| Tournament statistics | |
| Matches played | 87 |
| Goals scored | 346 (3.98 per match) |
| Top goal scorer(s) | Adriano, Neto (5 goals) |
The 90th Emperor's Cup (第90回天皇杯) began on 4 September 2010 and ended on 1 January 2011 with the final at National Stadium in Tokyo, Japan. Gamba Osaka were the two-time defending champions, having won two previous tournaments.
Kashima Antlers won the tournament and was awarded a 2011 AFC Champions League berth.