Literature has shown that severe dental and skeletal malocclusions can have varying detrimental effects on speech production. This is due to the impairment of the orofacial structures which play a key role in the production of speech. Orthognathic surgery which aims to restore the balance between the dentofacial structures by correcting the dentofacial deformities is believed to have a positive effect on the speech production in such patients. This review throws light on the role of speech in patients undergoing orthognathic surgery.