Yim Pil-sung (born May 13, 1972) is a South Korean film director and screenwriter. He wrote and directed Antarctic Journal (2005), Hansel and Gretel (2007), and Scarlet Innocence (2014).

Yim Pil-sung began directing short films in 1997, with Souvenir as his first. Brushing (1998), about an overweight teenage boy who is left home alone with his senile grandfather, was invited to the Clermont-Ferrand International Short Film Festival. Baby (1999) screened at the Venice Film Festival and Karlovy Vary International Film Festival. Mobile (starring Park Hae-il, Yoon Jin-seo, and Yoon Je-moon) was included in the 2003 omnibus Show Me.