Declan O'Brien
- Born
- 21 December 1965
- Died
- 16 February 2022 (aged 56)
- Place of birth
- Rochester, New York, USA
- Birth name
- Declan Timothy O'Brien
- Known for
- Writer
Declan O'Brien was born on 21 December 1965 in Rochester, New York, USA. He was a writer and director, known for Alice Upside Down (2007), Rock Monster (2008) and Cyclops (2008). He died on 16 February 2022 in Beverly Hills, California, USA.
