Jack Clark (born 1996) is a Sydney-based filmmaker and screenwriter. His early short films such as 'Threshold' (2020) drew attention for their use of genre elements from horror and crime in new, subversive contexts. He is the co-founder of Australian independent production company FAX MACHINE alongside Jim Weir. Clark's debut feature film, 'Birdeater', which he wrote and co-directed with Weir, premiered in 2023.