A list of aircraft operators that have that have suffered an accident, serious incident or hijacking. The list may also contain defunct airlines or airlines that in the meantime have changed their name or have merged.

Airlines:
AirAsia
Airtech Rajawali Udara
Berjaya Air
Borneo Airways (acquired by Malaysian Airways to form Malaysia-Singapore Airlines)
Gading Sari Aviation Services
Hornbill Skyways
Malaysia Airlines
Malaysia-Singapore Airlines - MSA (airline split in 1972: Malaysian and Singapore Airlines)
Malaysian Airlines System - MAS (renamed Malaysia Airlines in 1987)
Malaysian Airways (renamed Malaysia-Singapore Airlines - MSA in 1966)
MASwings (MASwings is a wholly owned subsidiary of Malaysia Airlines)
Merpati Intan
Pan Malaysian Air Transport
Sabah Air
Transmile Air Service

Government:
Malaysia Civil Aviation Authority

Military:
Royal Malaysian Air Force - RMAF (also known as Tentera Udara DiRaja Malaysia (TUDM))