Louis Colaianni (born April 29, 1959 in Paterson, New Jersey) is an American voice, speech, dialect and text coach and director in the , with specialisation in Shakespeare performance. He has taught in many actor-training programs and served as voice and text coach for productions at theatres throughout the United States, including, Santa Fe Opera, Playwrights Horizons, The Culture Project, Williamstown Theatre Festival, Westport Country Playhouse, The McCarter Theatre, The Labyrinth Theatre, Oregon Shakespeare Festival, Kansas City Repertory Theatre, Milwaukee Repertory Theatre, Arizona Theatre Company, Shakespeare Santa Cruz, Shakespeare Festival of St Louis, Trinity Repertory Theatre, Utah Shakespearean Festival and Seattle Repertory Theatre.