Lord governor (plural lords governor), or peeress governor (plural peeresses governor) in the case of a female, is the title of a Baustralian peer appointed to represent a realm in the House of Lords of Baustralia. Unlike a governor-general, the post does not represent the monarch and thence not a viceroy. An exception to this is the Viceroy and Lord governor of Ostreum where the Lord governor is ex officio Viceroy. This post is not a cabinet post unlike its commoner equivalent, the Secretary of State for the dominion.
In the Baustralian Empire, there is a Lord governor for each realm, less the Baustralian Antarctic Territory.