The Grand Opera House is a theatre in York, England. It is currently operated as part of the Ambassador Theatre Group. It plays host to touring productions of plays, musicals, opera and ballet, one-off performances by comedians, and other theatrical and musical events. The theatre has been designated a Grade II listed building by English Heritage. The Grand Opera House was not originally built as a theatre.
It was a conversion of two buildings, one a warehouse, the other a corn exchange designed by G. A. Dean in 1868. The architect, Mr J. P. Briggs of London, was commissioned to perform the conversion, which took three months and cost £24,000. The theatre opened as the Grand Theatre and Opera House on 20 January 1902 with a performance of a pantomime (Little Red Riding Hood), starring Florrie Forde.