Men's 400 metre freestyle S8 at the XV Paralympic Games
Venue	Olympic Aquatics Stadium
Dates	8 September 2016
Competitors	12 from 8 nations
Medalists
Oliver Hynd  Great Britain Xu Haijiao  China Wang Yinan  China
←2012 2020→

The men's 400 metre freestyle S8 event at the 2016 Paralympic Games took place on 8 September, at the Olympic Aquatics Stadium.

Two heats were held, both with six swimmers. The swimmers with the eight fastest times advanced to the final.

Prior to the competition^[update], the existing World and Paralympic records were as follows.

World record	Oliver Hynd (GBR)	4:23.76	Sheffield, Great Britain	30 July 2016
Paralympic record	Sam Hynd (GBR)	4:26.25	Beijing, China	9 September 2008
2016 World leading	Oliver Hynd (GBR)	4:23.76	Sheffield, Great Britain	30 July 2016

Rank	Lane	Name	Nationality	Time	Notes
1	4	Wang Yinan	China	4:41.10	Q
2	3	Xu Haijiao	China	4:41.18	Q
3	5	Josef Craig	Great Britain	4:41.93	Q
4	6	Bohdan Hrynenko	Ukraine	4:51.81
5	2	Ernie Gawilan	Philippines	4:54.24
6	7	Evan Austin	United States	4:56.85

Rank	Lane	Name	Nationality	Time	Notes
1	4	Oliver Hynd	Great Britain	4:31.90	Q
2	3	Robert Griswold	United States	4:38.46	Q
3	5	Caio Oliveira	Brazil	4:40.64	Q
4	6	Blake Cochrane	Australia	4:41.06	Q
5	2	Jesse Aungles	Australia	4:43.87	Q
6	7	Torben Schmidtke	Germany	4:56.29

Rank	Lane	Name	Nationality	Time	Notes
	4	Oliver Hynd	Great Britain	4:21.89	WR
	7	Xu Haijiao	China	4:25.65
	2	Wang Yinan	China	4:32.78
4	3	Caio Oliveria	Brazil	4:33.97
5	5	Robert Griswold	United States	4:36.26
6	1	Josef Craig	Great Britain	4:39.04
7	6	Blake Cochrane	Australia	4:39.79
8	8	Jesse Aungles	Australia	4:48.23

• "Men's 400m Freestyle - S8". Archived from the original on 22 September 2016. Retrieved 8 September 2016.