Tan Siyou is a director from Los Angeles, originally from Singapore. Her short film "Hello, Ahma," completed as part of the AFI Directing Workshop for Women 2018–2019, was shown in the competition program of the 2019 Toronto International Film Festival. Her previous short film "2200 Volts" was also presented and premiered at the 2018 Singapore International Film Festival.

Most recently, she was selected as a participant in the Asian Film Academy of the 2019 Busan International Film Festival and the 2019–2020 Universal Directors Initiative program.