This is a list of known World War II era codenames for military operations and missions commonly associated with World War II.
As of 2022[update] this is not a comprehensive list, but most major operations that Axis and Allied combatants engaged in are included, and also operations that involved neutral nation states.
Operations contained in the Western Front category have been listed by year.
Operations that follow the cessation of hostilities and those that occurred in the pre-war period are also included.
Excludes North African campaigns Includes North Sea and Arctic Ocean operations and actions against naval vessels in harbour Includes operations in Iraq, Syria, Iran, India, Burma, Malaya and Indo-China, and the Indian Ocean Includes some operations by regular forces in support of partisans