Blabbermouth is a play by Australian playwright Mary Morris, adapted from the book of the same name by Morris Gleitzman.
The play concerns a young girl, Rowena, who moves to a new country town and school. Although Rowena can hear she is mute. Her widowed father has a penchant for satin cowboy shirts and embarrassing his daughter in public. This is a story about disability, friendship, fitting in, and how children and adults try to co-exist.
Blabbermouth was first produced by the Melbourne Theatre Company at The Fairfax, Victorian Arts Centre, 10 September 1993 with the following cast: