Theatre Four at Theatre Row is an off-Broadway theatre on Theatre Row in Manhattan, New York City. It is one of five small theatres housed within the Theatre Row establishment at 410 W 42 Street. The building was an integral part of the project to revitalize 42 Street, bringing a new era of live entertainment and theatrical productions to what was then known as a deteriorated part of town. Theatre Four at Theatre Row has continuously put on performances since its renovations and reopening in 2002, and it can accommodate just under 100 guests.