The Rex Theatre building is located at 714 Lalonde Street in Whitewood, Saskatchewan, Canada.

The building is a designated Heritage Property.

[1] Originally built to house the Merchant's Bank, the building was later used to house the Theatre, with the removal of the second story the building was adapted to house a telephone exchange, later a retail outlet and finally a museum.

The building currently houses the Whitewood Historical Museum.

This article about a building or structure in Saskatchewan is a stub.