| Date | 23 April – 21 May 2011 |
|---|---|
| Countries |  Hong Kong Japan Kazakhstan Sri Lanka United Arab Emirates |
| Final positions | |
| Champions | Japan (19th title) |
| Tournament statistics | |
| Matches played | 10 |
| Top scorer(s) | Maxim Lifontov (54) |
| Most tries | Kosuke Endo (8) |
| Website | www |
← 2010 2012 → | |
- For divisional competitions, see: 2011 Asian Five Nations division tournaments
The 2011 Asian Five Nations, known as the 2011 HSBC Asian 5 Nations due to the tournament's sponsorship by the HSBC, was the 4th series of the Asian Five Nations rugby union tournament.
The 2011 Asian 5 nations consisted of the best 5 teams in Asia; Hong Kong, Japan, Kazakhstan, Sri Lanka and the United Arab Emirates.
Sri Lanka qualified for the 2011 edition of the tournament by winning Division One of the 2010 tournament against Singapore 23–16. The United Arab Emirates also qualify with the disbanding of the Arabian Gulf rugby team, this is the first time both these teams have appeared in the top five.