The St. James Theatre is a Broadway theatre located at 246 W. 44th St. (between 7th & 8th Avenues) in New York City. It was built by Abraham L. Erlanger, theatrical producer and a founding member of the Theatrical Syndicate, on the site of the original Sardi's restaurant. It opened in 1927 as The Erlanger. Upon Erlanger's death in 1930, control of the venue was taken over by the Astor family, who owned the land on which the theatre stood. The Astors renamed it the St. James Theatre.

St James's Theatre (est. 1835) was a 1,200-seat theatre located in King Street, at Duke Street, St James's, London. The elaborate theatre was designed with a neo-classical exterior and a Louis XIV style interior by Samuel Beazley and built by the partnership of Peto & Grissell for the tenor and theatre director, John Braham. The interior was decorated by the Frederick Crace Company.

St James Theatre may refer to:

• St. James Theatre, Sydney