2004 IAAF World Indoor Championships – Men's 800 metres

The Men's 800 metres event at the 2004 IAAF World Indoor Championships was held on March 5–7.

Medalists

Gold	Silver	Bronze
Mbulaeni Mulaudzi South Africa	Rashid Ramzi Bahrain	Osmar Barbosa dos Santos Brazil

First 2 of each heat (Q) and next 6 fastest (q) qualified for the semifinals.

Rank	Heat	Name	Nationality	Time	Notes
1	1	Osmar Barbosa dos Santos	Brazil	1:47.67	Q
2	5	Jean-Patrick Nduwimana	Burundi	1:47.71	Q
3	3	Joseph Mwengi Mutua	Kenya	1:47.86	Q
4	3	Arnoud Okken	Netherlands	1:47.88	Q, SB
5	6	Florent Lacasse	France	1:48.01	Q
6	3	Amine Laalou	Morocco	1:48.03	q
7	1	Joeri Jansen	Belgium	1:48.10	Q
8	4	Rashid Ramzi	Bahrain	1:48.25	Q
9	6	Mouhssin Chehibi	Morocco	1:48.44	Q
10	6	William Yiampoy	Kenya	1:48.49	q
11	4	Bram Som	Netherlands	1:48.55	Q
11	6	Yusuf Saad Kamel	Bahrain	1:48.55	q
13	1	Michael Stember	United States	1:48.66	q
14	1	Juan de Dios Jurado	Spain	1:48.70	q, SB
15	5	Tom Omey	Belgium	1:48.92	Q
16	2	Antonio Manuel Reina	Spain	1:49.72	Q
17	2	Mbulaeni Mulaudzi	South Africa	1:49.83	Q
18	4	Fabiano Peçanha	Brazil	1:49.98	q, SB
19	4	David Fiegen	Luxembourg	1:50.02
20	3	Derrick Peterson	United States	1:50.05
21	3	Sajad Moradi	Iran	1:50.06
22	2	Dmitriy Bogdanov	Russia	1:50.21
23	5	Nicolas Aïssat	France	1:50.65
24	2	Rizak Dirshe	Sweden	1:50.89
25	2	Paskar Owor	Uganda	1:51.41	SB
26	1	Roman Hanzel	Slovakia	1:51.54
27	4	Mohammad Al-Azemi	Kuwait	1:51.80	SB
28	2	Abubaker El Gatroni	Libya	1:52.64
29	6	Avetik Arakelian	Armenia	1:53.44	SB
30	5	Abdal Salam Aldabaji	Palestine	1:53.48	NR
31	1	Kondwani Chiwina	Malawi	1:54.49	PB
32	6	Nazar Begliyev	Turkmenistan	1:54.72	SB
	4	Samwel Mwera	Tanzania	DQ
	5	Berhanu Alemu	Ethiopia	DQ
	3	Ismail Ahmed Ismail	Sudan	DNF
	5	Gary Reed	Canada	DNF

First 2 of each semifinal (Q) qualified for the final.

Rank	Heat	Name	Nationality	Time	Notes
1	1	Osmar Barbosa dos Santos	Brazil	1:46.91	Q
2	1	William Yiampoy	Kenya	1:47.02	Q
3	2	Joseph Mwengi Mutua	Kenya	1:47.07	Q
4	1	Yusuf Saad Kamel	Bahrain	1:47.16	AR
5	2	Rashid Ramzi	Bahrain	1:47.28	Q, PB
6	2	Florent Lacasse	France	1:47.28
7	1	Antonio Manuel Reina	Spain	1:47.33	SB
8	1	Mouhssin Chehibi	Morocco	1:47.45	PB
9	2	Arnoud Okken	Netherlands	1:47.84	SB
10	2	Joeri Jansen	Belgium	1:48.61
11	1	Michael Stember	United States	1:48.68
12	3	Mbulaeni Mulaudzi	South Africa	1:49.96	Q
13	3	Amine Laalou	Morocco	1:50.07	Q
14	3	Juan de Dios Jurado	Spain	1:50.99
15	3	Tom Omey	Belgium	1:51.15
16	2	Fabiano Peçanha	Brazil	1:51.59
17	3	Jean-Patrick Nduwimana	Burundi	1:52.20
	3	Bram Som	Netherlands	DNF

Rank	Name	Nationality	Time	Notes
	Mbulaeni Mulaudzi	South Africa	1:45.71
	Rashid Ramzi	Bahrain	1:46.15	AR
	Osmar Barbosa dos Santos	Brazil	1:46.46
4	Amine Laalou	Morocco	1:46.57	PB
5	William Yiampoy	Kenya	1:46.88
6	Joseph Mwengi Mutua	Kenya	1:47.86