| Date | Event | Location | Quotas | Qualifier(s) |
|---|---|---|---|---|
| Host nation | 1 | 
Great Britain (4)
| ||
| 15–25 November 2010 | 2010 Asian Games [1] | Guangzhou, China | 1 | 
Pakistan (8)
|
| 20–28 August 2011 | 2011 EuroHockey Championship | Mönchengladbach, Germany | 3 | 
Germany (2)
Netherlands (3)
Belgium
1 (11)
|
| 2–11 September 2011 | 2011 African Olympic Qualifier | Bulawayo, Zimbabwe | 0 | — 2 |
| 6–9 October 2011 | 2011 Oceania Cup | Hobart, Australia | 2 | 
Australia (1)
New Zealand (7)
|
| 14–30 October 2011 | 2011 Pan American Games | Guadalajara, Mexico | 1 | 
Argentina (9)
|
| 18–26 February 2012 | Olympic Qualification Tournament 1 | New Delhi, India | 1 | 
India (10)
|
| 10–18 March 2012 | Olympic Qualification Tournament 2 | Dublin, Ireland | 1 | 
South Korea (6)
|
| 26 April – 6 May 2012 | Olympic Qualification Tournament 3 | Kakamigahara, Japan | 1 | 
South Africa (12)
|
| Invitational | 1 | 
Spain
2 (5)
| ||
| Total | 12 | |||
- ^1 – Great Britain automatically qualified as host nation, therefore the berth obtained by England as third placed team at the 2011 EuroHockey Nations Championship was given to fourth placed team Belgium.
- ^2 – South Africa won the African qualifier tournament but gave up their automatic berth on the premise that they should play a qualifier having deemed the African tournament as sub-standard. Eventually they won the Qualification Tournament 3. Instead, Spain was invited as the highest ranked team not already qualified after the conclusion of the continental championships. [2]
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- ^ "Hockey – Sport Related Information". gz2010.cn. Retrieved 2011-05-27.
- ^ "Agony for SA hockey men". Supersport.com. 2011-12-03. Retrieved 2011-12-14.