David Fredrik Sandberg (born 21 January 1981) is a Swedish filmmaker. He is best known for his homemade short horror films (released under the online pseudonym "ponysmasher") and for his feature directorial debut Lights Out (2016), based on his acclaimed 2013 horror short of the same name. He has gone on to direct major studio franchise films such as Annabelle: Creation (2017), Shazam! (2019) and Until Dawn (2025). He is married to actress and producer Lotta Losten, who has starred in many of his short films. He co-founded the production company Mångata.