Alexander Library Building, Public library building in Perth, Australia.

The Alexander Library Building stands in the Perth Cultural Centre, named after historian Fred Alexander. Completed in 1985, it houses the State Library of Western Australia, the J S Battye Library and the State Records Office. A sloped walkway east of the building follows the line of the former Museum Street.

Construction of the Alexander Library Building began on 30 November 1979 and the building opened on 18 June 1985. It was named after Fred Alexander, a Western Australian historian and former member of the Library Board. The sloped walkway east of the building follows the alignment of the old Museum Street, whose mixed streetscape was removed for the construction.

The building is named after Fred Alexander, a Western Australian historian and former member of the Library Board. Inside, the J S Battye Library and the State Records Office sit alongside the State Library, and the sloped walkway east of the building follows the line of the former Museum Street.

The building stands in the Perth Cultural Centre, and a sloped walkway just east of it follows the line of the former Museum Street between James Street and Francis Street. Plaques at the entrance record the start of construction on 30 November 1979 and the opening on 18 June 1985. Inside, the State Library, the J S Battye Library and the State Records Office share the structure, which has been altered internally over time while keeping its basic form.

Only one building from the old Museum Street is commemorated on the structure: the Perth Baptist Church, which stood there from 1899 to 1979. The sloped walkway east of the building follows the line of that lost street, and the earlier streetscape can be traced in Wise's Directories.