Swimming at the 2006 Asian Games – Men's 400 metre freestyle

All times are Arabia Standard Time (UTC+03:00)

Prior to this competition, the existing world, Asian and Games records were as follows.

World Record	Ian Thorpe (AUS)	3:40.08	Manchester, United Kingdom	30 July 2002
Asian Record	Park Tae-hwan (KOR)	3:45.72	Victoria, Canada	20 August 2006
Games Record	Shunichi Fujita (JPN)	3:50.41	Busan, South Korea	2 October 2002

Legend

• DNS — Did not start

Heats

Rank	Heat	Athlete	Time	Notes
1	2	Zhang Lin (CHN)	3:54.09
2	3	Takeshi Matsuda (JPN)	3:55.36
3	4	Park Tae-hwan (KOR)	3:56.46
4	3	Kang Yong-hwan (KOR)	3:57.42
5	2	Kenichi Doki (JPN)	3:58.20
6	4	Zhang Enjian (CHN)	3:59.62
7	2	Daniel Bego (MAS)	4:01.17
8	3	Tharnawat Thanakornworakiart (THA)	4:01.92
9	3	Marcus Cheah (SIN)	4:03.94
10	4	Naeem Al-Masri (SYR)	4:05.17
11	4	Tang Sheng-chieh (TPE)	4:05.18
12	3	Ryan Arabejo (PHI)	4:05.60
13	2	Nawaf Al-Wazan (KUW)	4:06.93
14	2	Rehan Poncha (IND)	4:07.72
15	4	Timur Irgashev (UZB)	4:08.86
16	4	Ibrahim Nazarov (UZB)	4:09.40
17	4	Chen Te-tung (TPE)	4:10.42
18	2	Chung Kwok Ting (HKG)	4:13.71
19	3	Anas Abu-Yousuf (QAT)	4:15.14
20	2	Rashid Iunusov (KGZ)	4:25.25
21	1	Jamil Yamout (LIB)	4:25.42
22	4	Timur Kartabaev (KGZ)	4:31.23
23	3	Soheil Maleka Ashtiani (IRI)	4:31.66
24	1	Ali Adel (IRQ)	4:38.86
25	1	Ali Majeed (IRQ)	4:51.69
—	3	Sng Ju Wei (SIN)	DNS

Final

Rank	Athlete	Time	Notes
	Park Tae-hwan (KOR)	3:48.44	GR
	Zhang Lin (CHN)	3:49.03
	Takeshi Matsuda (JPN)	3:49.38
4	Zhang Enjian (CHN)	3:53.49
5	Kenichi Doki (JPN)	3:53.61
6	Kang Yong-hwan (KOR)	3:53.66
7	Daniel Bego (MAS)	3:57.34
8	Tharnawat Thanakornworakiart (THA)	4:03.52

• Results