| Tournament details | |
|---|---|
| Country | Japan |
| Teams | 88 |
| Final positions | |
| Champions | FC Tokyo (1st title) |
| Runner-up | Kyoto Sanga |
The 91st Emperor's Cup (第91回天皇杯) was a regular edition of an annual Japanese national cup tournament. It started on 3 September 2011 and ended on 1 January 2012 with the final at National Stadium in Tokyo, Japan, won by FC Tokyo 4–2 against Kyoto Sanga.
The cup winner were guaranteed a place in the 2012 AFC Champions League.