Prior to 1911, the Western Australian political system had neither organised political parties (apart from the Labor Party) nor an organised opposition. The notion of leader of the opposition was well-understood however, and on occasions was applied to members. Maitland Brown, for example, was often referred to as Leader of the Opposition during his period as an outspoken critic of GovernorRobinson's Government.
List of Leaders of the Opposition in Western Australia
This is an incomplete list of Leaders of the Opposition in Western Australia, from 1905 to present: