Cecilia So Lai-shan is a Hong Kong actress. She made her acting debut as Gigi in the romance film She Remembers, He Forgets (2015), for which she received nominations for Best New Performer in the 52nd Golden Horse Awards and 35th Hong Kong Film Awards. She then landed leading roles in the films Never Too Late (2017), Napping Kid (2018), Hell Bank Presents: Running Ghost (2020), and Far Far Away (2021).