The men's 800 metres at the 2010 IAAF World Indoor Championships was held at the ASPIRE Dome on 12, 13 and 14 March.
| width=200 bgcolor=gold | Gold | width=200 bgcolor=silver | Silver | width=200 bgcolor=CC9966 | Bronze |
| Abubaker Kaki | Boaz Kiplagat Lalang | Adam Kszczot |
| Standing records prior to the 2010 IAAF World Indoor Championships | |||||
|---|---|---|---|---|---|
| World record | 1:42.67 | Paris, France | 9 March 1997 | ||
| Championship record | 1:42.67 | Paris, France | 9 March 1997 | ||
| World Leading | 1:45.77 | Düsseldorf, Germany | 3 February 2010 | ||
| African record | 1:44.71 | Stuttgart, Germany | 31 January 2004 | ||
| Asian record | 1:45.26 | Valencia, Spain | 9 March 2008 | ||
| European record | 1:42.67 | Paris, France | 9 March 1997 | ||
| North and Central American and Caribbean record | 1:45.00 | Sindelfingen, Germany | 8 March 1992 | ||
| Oceanian Record | 1:47.48 | State College, United States | 30 January 2010 | ||
| South American record | 1:45.43 | Piraeus, Greece | 8 March 1989 | ||
| Date | Time | Round | |
|---|---|---|---|
| March 12, 2010 | 11:00 | Heats | |
| March 13, 2010 | 11:00 | Semifinals | |
| March 14, 2010 | 17:30 | Final |
Qualification: First 2 in each heat (Q) and the next 2 fastest (q) advance to the semifinals.
| Rank | Heat | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 1 | 1:46.69 | Q | |||
| 2 | 1 | 1:47.40 | Q, PB | |||
| 3 | 2 | 1:47.48 | Q | |||
| 4 | 2 | 1:47.65 | Q | |||
| 5 | 2 | 1:48.29 | q, PB | |||
| 6 | 4 | 1:49.16 | Q | |||
| 7 | 4 | 1:49.57 | Q | |||
| 8 | 4 | 1:49.69 | q | |||
| 9 | 1 | 1:49.69 | PB | |||
| 10 | 5 | 1:50.15 | Q | |||
| 11 | 2 | 1:50.32 | ||||
| 12 | 5 | 1:50.35 | Q | |||
| 13 | 5 | 1:50.43 | ||||
| 14 | 3 | 1:50.61 | Q | |||
| 15 | 3 | 1:50.64 | Q | |||
| 16 | 3 | 1:50.74 | ||||
| 17 | 5 | 1:50.92 | ||||
| 18 | 5 | 1:51.22 | SB | |||
| 19 | 3 | 1:51.88 | SB | |||
| 20 | 3 | 1:51.96 | ||||
| 21 | 4 | 1:52.54 | ||||
| 22 | 1 | 1:53.52 | ||||
| 23 | 5 | 1:55.84 | PB | |||
| 24 | 4 | 1:57.02 | PB | |||
| 25 | 2 | 1:58.47 | PB | |||
| 26 | 4 | 2:07.08 | PB | |||
| 1 | [1] |
Qualification: First 3 in each heat (Q) advance to the final.
| Rank | Heat | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 1 | 1:46.45 | Q | |||
| 2 | 1 | 1:46.73 | Q | |||
| 3 | 1 | 1:46.90 | Q | |||
| 4 | 1 | 1:47.05 | PB | |||
| 5 | 1 | 1:47.50 | PB | |||
| 6 | 1 | 1:49.70 | ||||
| 7 | 2 | 1:51.05 | Q | |||
| 8 | 2 | 1:51.08 | Q | |||
| 9 | 2 | 1:51.25 | Q | |||
| 10 | 2 | 1:51.29 | ||||
| 11 | 2 | 1:51.82 | ||||
| 12 | 2 | 1:52.43 |
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 1:46.23 | SB | ||||
| 1:46.39 | |||||
| 1:46.69 | |||||
| 4 | 1:46.90 | ||||
| 5 | 1:47.28 | ||||
| 6 | 1:48.99 |