Soi Cheang (born 11 July 1972), also known as Bob Cheng or by his birth name Cheang Pou-soi, is a Macau-born Hong Kong filmmaker. Known for his contribution to action crime films, his works Motorway (2012), Limbo (2021), Mad Fate (2023), and ' (2024) earned him four Best Director nominations at the Hong Kong Film Awards, which he won for the latter two.
Cheang's films have regularly appeared at international film festivals; Accident (2009) was selected to be in Competition section of Venice Film Festival, Limbo (2021) and Mad Fate (2023) were selected to be in the Berlinale Special section of Berlin International Film Festival, and ' (2024) was selected to be in the Official Selection (Midnight Screening) of the Cannes Film Festival.
In addition to directing action crime films, Cheang was also directed The Monkey King trilogy, in which he produced the latter. His other works, included Paradox (2017) and I'm Livin' It (2019), earned him two Best Film nominations at the Hong Kong Film Awards, as well as The Sunny Side of the Street (2022), earned him the Golden Horse Award for Best Narrative Feature nomination, respectively.