This meta-analytic review demonstrates that language interventions can improve oral language in children with neurodevelopmental disorders. We assessed interventions that target language skills in children with neurodevelopmental disorders. The interventions had to use techniques ranging from explicit and structured activities (explicit instruction of vocabulary, narrative structure or grammatical rules) to implicit and broad activities (shared book reading, general language stimulation). We examined whether the interventions had an impact on language in general, or on more specific aspects of language in both receptive and expressive modalities. This review examines 42 publications reporting on the effects of oral language interventions in children with neurodevelopmental disorders.