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Woo Sang-hyeok (Korean: 우상혁; pronounced [u sɐŋçʌk̚]; born 23 April 1996) is a South Korean high jumper. He is a two-time silver medalist at the World Championships, two-time gold medalist at the World Indoor Championships and three-time gold medalist at the Asian Championships. Woo has also represented South Korea at the 2016 and 2020 Olympics, placing fourth in Tokyo.
| Year | Competition | Venue | Position | Notes |
| 2013 | World Youth Championships | Donetsk, Ukraine | 1st | 2.20 m |
| 2014 | World Junior Championships | Eugene, United States | 3rd | 2.24 m |
| Asian Games | Incheon, South Korea | 10th | 2.20 m | |
| 2015 | Asian Championships | Wuhan, China | 10th | 2.10 m |
| Universiade | Gwangju, South Korea | 5th | 2.24 m | |
| 2016 | Asian Indoor Championships | Doha, Qatar | 12th | m i |
| Olympic Games | Rio de Janeiro, Brazil | 22nd (q) | 2.26 m | |
| 2017 | Asian Championships | Bhubaneswar, India | 1st | 2.30 m |
| World Championships | London, United Kingdom | 25th (q) | 2.22 m | |
| Universiade | Taipei, Taiwan | 8th | 2.20 m | |
| 2018 | Asian Games | Jakarta, Indonesia | 2nd | 2.28 m |
| 2019 | Asian Championships | Doha, Qatar | 7th | 2.19 m |
| 2021 | Olympic Games | Tokyo, Japan | 4th | 2.35 m |
| 2022 | World Indoor Championships | Belgrade, Serbia | 1st | m i |
| World Championships | Eugene, Oregon | 2nd | 2.35 m | |
| 2023 | Asian Indoor Championships | Astana, Kazakhstan | 2nd | 2.24 m |
| Asian Championships | Bangkok, Thailand | 1st | 2.28 m | |
| World Championships | Budapest, Hungary | 6th | 2.29 m | |
| Asian Games | Hangzhou, China | 2nd | 2.33 m | |
| 2024 | World Indoor Championships | Glasgow, United Kingdom | 3rd | 2.28 m |
| Olympic Games | Paris, France | 7th | 2.27 m | |
| 2025 | World Indoor Championships | Nanjing, China | 1st | 2.31 m |
| Asian Championships | Gumi, South Korea | 1st | 2.29 m | |
| World Championships | Tokyo, Japan | 2nd | 2.34 m |