Jakub Vadlejch is a Czech track and field athlete who competes in the javelin throw. He is a four-time Olympian for the Czech Republic, having competed in 2012, 2016,2020 and 2024 winning a silver medal in 2020. He also has represented his country six times at the World Championships in Athletics, winning the bronze medal in 2022 and 2023 and silver medal in 2017, and six times a competitor at the European Athletics Championships, winning the silver medal in 2022 and the gold medal in 2024. He also won the 2016 Diamond League title, 2017 Diamond League title, and the 2023 Diamond League Title.