Calvin Quek

Calvin Quek Jun Jie (born 26 February 1996) is a Singapore sprinter who specialises in the 400 m and 400 m hurdles.

As a schoolboy, Quek was a perennial medallist at National Schools in both events. He first broke the 400m hurdles national record in February 2022 with a time of 51.73s at a Southeast Asian Games Trial. Subsequently, at the SEA Games in Hanoi, he rewrote his national record with a time of 51.19s and became the first Singaporean to win a SEA Games medal in the event since 1969. That year, he also competed in the 2022 Commonwealth Games and 2022 Asian Games. At the same competition, he was part of the quartet that broke the national record. In the World University Games, he ran 50.43s to rewrite his 400m hurdles national record. At the 2025 SEA Games in Bangkok, he won Singapore's first gold in the event in 60 years with a time of 50.27s.