Keir O'Donnell
- Birth Date
- 11/8/1978
- Birth Place
- Sydney, New South Wales, Australia
- Known For
- Acting
Keir O'Donnell (born November 8, 1978) is an Australian actor best known for his roles in the films Wedding Crashers and Paul Blart Mall Cop. He also had guest appearances in episodes of the television series Lost, CSI, and The Closer.
