Harry Lighton is a British screenwriter and filmmaker living in London. He began making short films while studying literature at Oxford University. He made the short film Wren Boys (2017), which was nominated for a 2018 BAFTA in the Best British Short Film category and won the award for Best British Short Film at the British Film Festival before its American premiere at Sundance. In recent years, Harry Lighton has collaborated on various projects with director Oliver Hermanus and is currently writing the screenplay for an upcoming biographical film about Alexander McQueen.

His feature directorial debut, Pillion, was shown at the 2025 Cannes Film Festival. He is the son of Sir Thomas Hamilton Lighton, 9th Baronet Lighton, and Belinda Jean Ferguson. His twin brother James is the heir to the Lighton baronetcy. Like his father, he attended Eton College and, together with his brother, represented his school in football.