The Capitol Theatre is a historic theatre located in the village of Port Chester, Westchester County, New York. It was designed by noted theater architect Thomas W. Lamb (1871–1942) and built in 1926. The 1,800-seat facility operates as a concert venue, hosting musicians and occasionally comedians, as owned and operated by NYC-based concert promoter Peter Shapiro. The Capitol Theatre has had a long history, with tenures as a movie theater and catering hall, in addition to hosting concerts.

Port Chester is a village in the U.S. state of New York and the largest part of the town of Rye in Westchester County by population. At the 2010 U.S. census, the village had a population of 28,967 and was the fifth-most populous village in New York State. In 2019, its population grew to a census-estimated 29,342 residents. Located in southeast Westchester, Port Chester forms part of the New York City metropolitan statistical area. Port Chester borders Connecticut and the town of Greenwich to the east. It is one of only 12 villages in New York still incorporated under a charter; other villages either incorporated or reincorporated under the provisions of Village Law.