The men's 800 metres at the 2011 IPC Athletics World Championships is held at the QEII Stadium on 22-23 and 26–29 January
| Class | width=200 bgcolor=gold | Gold | width=200 bgcolor=silver | Silver | width=200 bgcolor=CC9966 | Bronze |
| T11 | Jason Joseph Dunkerley | Carlos j. Barto Silva | William Sosa | |||
| T12 | Abderrahim Zhiou | Ignacio Avila | David Devine | |||
| T13 | Lukasz Wietecki | Abdelillah Mame | Jose Luis Sanchez | |||
| T36 | Artem Arefyev | Paul Blake | Jose Manuel Gonzalez | |||
| T37 | Michael McKillop | Brad Scott | Khaled Hanani | |||
| T46 | Samir Nouioua | Marcin Awizen | Guenther Matzinger | |||
| T52 | Tomoya Ito | Hirokazu Ueyonabaru | Toshihiro Takada | |||
| T53 | Richard Colman | Roger Puigbo Verdaguer | Yoo Byunghoon | |||
| T54 | David Weir | Marcel Hug | Julien Casoli |
The Men's 800 metres, T37 was held on January 28
T37 = spasticity in an arm and leg on one side of the body, good functional ability on the other side.
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 1:58.90 | WR | ||||
| 2:03.25 | SB | ||||
| 2:08.00 | SB, R 125.5 | ||||
| 2:10.50 | AR |
Key: WR = World record, SB = Seasonal best, AR = Area Record, R 125.5 = Warning by unsporting manner