Joshua Heuston (born November 18, 1996) is an Australian actor/model of Anglo and Lankan heritage. While pursing his modeling career, his interest in acting began after starring in Super Cruel's music video for Sicklaced in 2017. He finally went on to make his acting debut in the Australian teen drama series Dive Club (2021).

Heuston made his feature film debut with a minor role in Thor: Love and Thunder (2022). He also appears in Dangerous Animals (2025). He is mainly known for his TV appearances as Dusty Reid in Heartbreak High (2022-2026), Constantine Corrino in Dune: Prophecy (2024-present) and Justin Kohl in Off Campus (2026).