The Cloisters, Heritage building in central Perth, Australia.

The Cloisters is a two-storey dark brick building at 200 St Georges Terrace, terminating the view up Mill Street. Designed by Richard Roach Jewell, it has Tudor and Gothic details derived from St James's Palace, Hampton Court, Eton College and Fulham Palace. The interior was gutted in 1971 for office space, leaving the facades and plate-glass windows.

The building was constructed in 1858 by Richard Roach Jewell as Perth's first secondary school, called the Perth Church of England Collegiate School. It served as an important education center that shaped several prominent figures in the region's development.

The name Cloisters came from the eastern half's use as a boarding house in 1904, not from a monastic courtyard. The building's Tudor and Gothic details tied it to the English monarchy and the Church of England. Former students include John Forrest, Western Australia's first Premier, and Alexander Forrest, a Lord Mayor of Perth.

The Cloisters stands at 200 St Georges Terrace, opposite the Mill Street intersection, and closes the view up Mill Street. It is in Perth's central business district, so walking and public transport are the usual ways to reach it. The building was vacant as of April 2020, so check access before planning a visit.

The Port Jackson fig beside the building was planted in 1887 by a tenant of The Cloisters. It was kept when the site was redeveloped in 1971, and on 20 October 1995 the tree was listed on the state heritage register together with the building.