| Ren Ziwei | |
| Nationality: | Chinese |
| Birth Date: | 3 June 1997 |
| Birth Place: | Harbin, Heilongjiang, China |
| Height: | 1.77 m |
| Weight: | 73 kg |
| Sport: | Short track speed skating |
| Event: | 500 m |
| Club: | Harbin Winter Sports Training Centre |
| Pb: | 1000m: 1:26.512 (2014) 1500m: 2:19.946 (2014) |
| Show-Medals: | yes |
| P: | Rén Zǐwēi |
Ren Ziwei (born 3 June 1997) is a Chinese short track speed-skater.[1] He won a bronze medal in men's 1500 meters in 2014 World Junior Championships in Erzurum, Turkey. With his three teammates Chen Guang, Xu Fu and Sui Xin, he had also won the gold medal in men's 3000 meter relay race.[2] Ren competed in the 2022 Beijing Winter Olympics, and won gold in the men's 1000 meters, while his compatriot Li Wenlong took the silver.[3] Ren along with his teammates Wu Dajing, Qu Chunyu and Fan Kexin, had also won the gold medal in the 2000 meters mixed relay event.[4]
| Season | Location | Rank | Event | |
| 2021–22 | Nagoya | 1000m | ||
| 2021–22 | Dordrecht | 1500m | ||
| 2021–22 | Debrecen | 1500m | ||
| 2019-20 | Dresden | 1500m | ||
| 2015–16 | Shanghai | 1500m | ||
| 2019–20 | Nagoya | 5000m Relay | ||
| 2016–17 | Salt Lake City | 5000m Relay | ||
| 2016–17 | Shanghai | 5000m Relay | ||
| 2021–22 | Dordrecht | Mixed 2000m Relay | ||
| 2021–22 | Debrecen | Mixed 2000m Relay | ||
| 2021–22 | Beijing | Mixed 2000m Relay | ||
| 2019-20 | Montreal | Mixed 2000m Relay | ||
| 2018-19 | Calgary | Mixed 2000m Relay | ||
| 2021–22 | Nagoya | 500m | ||
| 2018-19 | Salt Lake City | 1000m | ||
| 2021–22 | Nagoya | 5000m Relay | ||
| 2018-19 | Salt Lake City | 5000m Relay | ||
| 2017-18 | Budapest | 5000m Relay | ||
| 2021–22 | Mixed 2000m Relay | |||
| 2021–22 | Debrecen | 500m | ||
| 2019–20 | Dordrecht | 1500m | ||
| 2018–19 | Calgary | 1000m | ||
| 2017–18 | Dordrecht | 5000m Relay |