Leon Sejranovic (born 12 July 2002) is an Australian taekwondo practitioner.

[3] He reached the last-16 competing for Australia at the 2022 World Taekwondo Championships in Guadalajara.

[4] In 2022, he won gold at both the Oceania Championships and Tahiti Open.

[5] He won the bronze medal in the Men's lightweight division at the 2023 World Taekwondo Championships in Baku in June 2023, defeating reigning world champion Daniel Quesada in the last 16 before he was beaten in the semi-finals by Croatia's eventual winner Marko Golubić.

[6] In April 2024, at the Oceania Taekwondo Qualifying tournament, he secured a place at the 2024 Olympic Games in Paris.