Men's 100 metre backstroke S8 at the XVI Paralympic Games
Venue	Tokyo Aquatics Centre
Dates	27 August 2021
Competitors	11 from 10 nations
Medalists
Robert Griswold  United States Iñigo Llopis Sanz  Spain Liu Fengqi  China
←2016 2024→

Swimming at the 2020 Summer Paralympics
Men's events
50 m freestyle	S3	S4	S5	S7	S9
	S10	S11	S13
100 m freestyle	S4	S5	S6	S8	S10
	S12
200 m freestyle	S2	S3	S4	S5	S14
400 m freestyle	S6	S7	S8	S9	S10
	S11	S13
50 m backstroke	S1	S2	S3	S4	S5
100 m backstroke	S1	S2	S6	S7	S8
	S9	S10	S11	S12	S13
	S14
50 m breaststroke	SB2	SB3
100 m breaststroke	SB4	SB5	SB6	SB7	SB8
	SB9	SB11	SB12	SB13	SB14
50 m butterfly	S5	S6	S7
100 m butterfly	S8	S9	S10	S11	S12
	S13	S14
150 m medley	SM3	SM4
200 m medley	SM6	SM7	SM8	SM9	SM10
	SM11	SM13	SM14
Freestyle relays	4 × 100 m (34pts)
Medley relays	4 × 100 m (34pts)
v t e

The Men's 100 metre backstroke S8 event at the 2020 Paralympic Games took place on 27 August 2021, at the Tokyo Aquatics Centre.

World Record	Zhou Cong (CHN)	1:08.92	Rio de Janeiro, Brazil	13 September 2016
Paralympic Record	Zhou Cong (CHN)	1:09.86	Rio de Janeiro, Brazil	13 September 2016

The swimmers with the top 8 times, regardless of heat, advanced to the final.

Rank	Lane	Name	Nationality	Time	Notes
1	4	Iñigo Llopis Sanz	Spain	1:07.90	Q
2	5	Liu Fengqi	China	1:08.57	Q
3	2	Joseph Perppersack	United States	1:09.30	Q
4	3	Pavel Kuklin	RPC	1:09.77	Q
5	6	Matthew Torres	United States	1:14.03

Rank	Lane	Name	Nationality	Time	Notes
1	4	Robert Griswold	United States	1:05.49	Q
2	5	Jesse Aungles	Australia	1:08.28	Q
3	3	Jurijs Semjonovs	Latvia	1:09.88	Q
3	6	Kota Kubota	Japan	1:09.88	Q
5	2	Sergio Salvador Martos Minguet	Spain	1:12.15
6	7	Diogo Cancela	Portugal	1:15.63

Rank	Lane	Name	Nationality	Time	Notes
	4	Robert Griswold	United States	1:02.55	WR
	5	Iñigo Llopis Sanz	Spain	1:06.82
	6	Liu Fengqi	China	1:07.09
4	3	Jesse Aungles	Australia	1:07.94
5	8	Kota Kubota	Japan	1:09.09
6	7	Pavel Kuklin	RPC	1:09.26
7	2	Joseph Perppersack	United States	1:09.45
8	1	Jurijs Semjonovs	Latvia	1:10.44