This is a list of mass or spree killers in Oceania and Maritime Southeast Asia that committed familicides.
A mass murderer is typically defined as someone who kills three or more people in one incident, with no "cooling off" period, not including themselves.
[1][2] A mass murder typically occurs in a single location where one or more persons kill several others.
This list does not include serial killers, members of democidal governments, or major political figures who orchestrated such actions.
* – Marks cases where all the victims were relatives of the perpetrator W – A basic description of the weapons used in the murders