Toh Wei Soong PLY (Chinese: 杜维崧; pinyin: Dù Wéisōng; born 11 September 1998) is a Singaporean freestyle and butterfly swimmer.

At the 2020 Summer Olympics, Toh finished fourth in the S7 50 metre Butterfly final, missing a bronze medal by 0.16 seconds.

In 2013 he joined Aquatic Performance Swim Club under the Singapore National Para-Swimming Team and met his current coach, Ang Peng Siong, a former Singaporean Olympic swimmer.

[6] He was also a torch bearer alongside other Singaporean athletes such as Yip Pin Xiu and Tay Wei Ming[7] At the 2017 ASEAN Para Games held in Kuala Lumpur, Malaysia, Toh won two gold medals and one silver medal from his 3 events,[8] breaking several Games records for his events.

At the 2018 Asian Para Games held in Jakarta, Indonesia, Toh won the first medal for Singapore at the 2018 Asian Para Games, obtaining a gold medal in the Men's 50 metre freestyle S7 event on the first day of competition, beating competitors Daisuke Ejima from Japan and Ernie Gawilan from the Philippines.