Athletics at the 2009 Summer Universiade – Men's 800 metres
The men's 800 metres event at the 2009 Summer Universiade was held on 10–12 July.Medalists
Results
Heats
Qualification: First 3 of each heat and the next 6 fastest qualified for the semifinals.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Dávid Takács | | 1:49.64 | Q |
| 2 | 1 | Lachlan Renshaw | | 1:50.03 | Q |
| 3 | 6 | Predrag Ranđelović | | 1:50.03 | Q, PB |
| 4 | 5 | Oleksandr Osmolovych | | 1:50.29 | Q |
| 5 | 6 | Li Xiangyu | | 1:50.30 | Q |
| 6 | 6 | Alexey Konovalov | | 1:50.35 | Q |
| 7 | 5 | Cristian Vorovenci | | 1:50.51 | Q |
| 8 | 5 | Goran Nava | | 1:50.61 | Q |
| 9 | 1 | Sajjad Moradi | | 1:50.65 | Q |
| 10 | 5 | Jozef Pelikan | | 1:50.74 | q |
| 11 | 4 | Fabiano Peçanha | | 1:51.09 | Q |
| 12 | 4 | Masato Yokota | | 1:51.15 | Q |
| 13 | 4 | Salvador Crespo | | 1:51.16 | Q |
| 14 | 4 | Vitalij Kozlov | | 1:51.19 | q |
| 15 | 6 | Roman Fosti | | 1:51.35 | q |
| 16 | 4 | Reda Ait Douida | | 1:51.36 | q |
| 17 | 4 | Yudah Chesire | | 1:51.58 | q |
| 18 | 1 | Johan Bagge | | 1:51.62 | q |
| 19 | 5 | Eoin Everard | | 1:51.74 | |
| 19 | 3 | Walid Meliani | | 1:51.74 | Q |
| 21 | 1 | Kaarel Lilleoja | | 1:52.04 | |
| 22 | 4 | Efthymios Papadopoulos | | 1:52.11 | |
| 23 | 4 | Jost Kozan | | 1:52.34 | |
| 24 | 2 | Ahmed Mainy | | 1:52.41 | Q |
| 25 | 5 | Alelksander Krivchonkov | | 1:52.45 | |
| 26 | 3 | David Horvat | | 1:52.47 | Q |
| 26 | 3 | Ehsan Mohajer Shojaei | | 1:52.47 | Q |
| 28 | 6 | Johan Klinteskog | | 1:52.49 | |
| 29 | 3 | Kristof Shaanika | | 1:52.50 | Q |
| 30 | 3 | Darko Rosić | | 1:52.59 | |
| 31 | 2 | Dušan Babić | | 1:52.61 | Q |
| 31 | 2 | Jozef Repcik | | 1:52.61 | |
| 33 | 2 | Dániel Kállay | | 1:52.77 | |
| 34 | 3 | Katlego Maotwe | | 1:54.61 | |
| 35 | 5 | Matias Bredahl Reedtz | | 1:55.11 | |
| 36 | 1 | Kim Jaeyoul | | 1:58.01 | |
| 37 | 3 | Carlos Noé Alvarez | | 1:58.76 | |
| 38 | 6 | Stefan Bečanović | | 1:58.91 | |
| 39 | 6 | Jaber Al-Shabibi | | 2:05.31 | |
| 40 | 6 | Tariq Al-Maashani | | 2:06.79 | |
| 41 | 2 | Shifaz Mohamed | | 2:11.22 | |
| 3 | Warren Hendricks | | | |
| 1 | Sulaiman Ahmed Al-Diwani | | | |
| 2 | Ibrahimm Al-Mazyad | | | |
| 1 | Hélio Fumo | | | |
| 2 | Hélio Gomes | | | |
| 3 | Halidi Djamchi Attoumane | | | |
| 6 | Abdelmunim Tibin | | | |
Semifinals
Qualification: First 2 of each semifinal and the next 2 fastest qualified for the finals.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 2 | Vitalij Kozlov | | 1:49.06 | Q |
| 2 | 1 | Sajjad Moradi | | 1:49.07 | Q |
| 3 | 1 | Walid Meliani | | 1:49.11 | Q |
| 4 | 2 | Fabiano Peçanha | | 1:49.18 | Q |
| 5 | 1 | Lachlan Renshaw | | 1:49.27 | q |
| 6 | 2 | Goran Nava | | 1:49.34 | q |
| 7 | 2 | Salvador Crespo | | 1:49.49 | |
| 8 | 2 | Li Xiangyu | | 1:49.58 | |
| 9 | 2 | Dávid Takács | | 1:49.70 | |
| 10 | 3 | Oleksandr Osmolovych | | 1:49.85 | Q |
| 11 | 2 | Reda Ait Douida | | 1:49.94 | |
| 12 | 3 | Masato Yokota | | 1:50.07 | Q |
| 13 | 1 | Cristian Vorovenci | | 1:50.38 | |
| 14 | 3 | Jozef Pelikan | | 1:50.42 | |
| 15 | 1 | Ahmed Mainy | | 1:50.50 | |
| 16 | 2 | Kristof Shaanika | | 1:50.62 | |
| 17 | 1 | Dušan Babić | | 1:50.65 | |
| 18 | 3 | Yudah Chesire | | 1:51.25 | |
| 19 | 2 | Johan Bagge | | 1:51.64 | |
| 20 | 3 | Alexey Konovalov | | 1:51.82 | |
| 21 | 1 | Predrag Ranđelović | | 1:51.91 | |
| 22 | 3 | Roman Fosti | | 1:53.58 | |
| 23 | 3 | David Horvat | | 1:54.70 | |
| 3 | Ehsan Mohajer Shojaei | | | |
Final
