Jason Ferus Blum (; born February 20, 1969) is an American film and television producer. He is the founder and CEO of Blumhouse Productions, which produced the horror franchises Paranormal Activity (2007–2015), Insidious (2010–2018), and The Purge (2013–2021). Blum also produced Sinister (2012), Oculus (2013), Whiplash (2014), The Gift (2015), Hush (2016), Split (2016), Ouija: Origin of Evil (2016), Get Out (2017), Happy Death Day (2017), Upgrade (2018), Halloween (2018), Us (2019), The Invisible Man (2020), and Freaky (2020).Blum received nominations for the Academy Award for Best Picture for producing Whiplash (2014), Get Out (2017), and BlacKkKlansman (2018). He received the Primetime Emmy Award for Outstanding Television Movie for producing the drama film The Normal Heart (2014). He also won the Primetime Emmy Award for Outstanding Documentary or Nonfiction Series for the documentary miniseries The Jinx (2015).
On July 14, 2012, Blum married journalist Lauren A.E. Schuker in Los Angeles.In July 2019, he bought a Brooklyn Heights townhouse for $9.8 million.
Blum was born in Los Angeles, California, the son of Shirley Neilsen Blum (née Neilsen) and Irving Blum. His mother was an art professor and his father was an independent art dealer and director of the Ferus Gallery. Blum is of Jewish heritage.He graduated from Vassar College in 1991. While at Vassar, he and fellow future filmmaker, Noah Baumbach, were roommates, and Blum produced Baumbach's first film, Kicking and Screaming in 1995.