The Castle Building is an office building in Montreal, Quebec, Canada. Its address is 1410 Stanley Street on the corner of Saint Catherine Street West in Downtown Montreal. It is owned by Gold Castle Holdings Limited.
The Castle Building was designed by Montreal architecture firm Ross and Macdonald and was completed in 1927. It has 11 floors. The building's facade material is brick and its facade system is applied masonry. Its architectural style is Neoclassical.The Castle Building was awarded the Heritage Emeritus Award in 2005 by the City of Montreal and Heritage Montreal.