Oliver Phommavanh is the child of a Laotian father and a Thai mother who migrated to Australia in 1971. Phommavanh grew up in western Sydney and trained as a teacher. In 2007, he left his teaching position at Lansvale Public School to concentrate on stand-up comedy and writing.
Phommavanh has a writing degree from the University of Western Sydney and a teaching degree from the University of Sydney.