The International Council of Museums (ICOM) is a non-governmental organisation dedicated to museums, maintaining formal relations with UNESCO and having a consultative status with the United Nations Economic and Social Council. Founded in 1946, ICOM also partners with entities such as the World Intellectual Property Organization, Interpol, and the World Customs Organization in order to carry out its international public service missions, which include fighting illicit traffic in cultural goods and promoting risk management and emergency preparedness to protect world cultural heritage in the event of natural or man-made disasters. ICOM members receive a card providing free or reduced-rate entry to many museums worldwide.

ICOM traces it roots back to the defunct International Museums Office (OIM (Office international des musées)), created in 1926 by the League of Nations. An agency of the League's International Commission on Intellectual Cooperation, like many of the League's initiatives the OIM was dissolved following WWII, and its activities later assumed by ICOM.

ICOM adopted its ICOM Code of Ethics for Museums in 1986, a reference tool that sets standards of excellence to which all members of the organisation must adhere. The ICOM Code of Ethics for Museums, translated into 39 languages and revised in 2004, establishes values and principles shared by ICOM and the international museum community. These standards of self-regulation by museums include basic principles for museum governance, the acquisition and disposal of collections, and rules for professional conduct.

A decision was reached in 2019 following the 25th General Conference of ICOM that the Code should be reviewed and revised if necessary. The review process is ongoing and is coordinated by the ICOM Standing Committee for Ethics (ETHCOM), a dedicated ICOM body which handles ethical issues relating to museums.

Since 2000, ICOM has published its Red Lists to combat the illicit traffic in cultural goods which causes significant damage to heritage, particularly in regions of the world where cultural property is most susceptible to theft and looting. Supporting the fight against illicit traffic in cultural goods is among ICOM's highest priorities, and the Red Lists raise awareness on smuggling and illicit trade in cultural objects. The ICOM Red Lists are tools designed to help police and customs officials, heritage professionals, and art and antiquities dealers to identify the types of objects that are most susceptible to illicit trafficking.^{[citation needed]}

As of 2025, ICOM has published Red Lists for many different countries and regions:^{[citation needed]}

Red Lists are not lists of stolen objects, but are awareness-raising tools to identify categories of cultural objects subject to theft and traffic. They help individuals, organisations and authorities, such as police or customs officials, identify objects at risk and prevent them from being illegally sold or exported. The cultural goods depicted on the lists are inventoried objects within the collections of recognised institutions. They serve to illustrate the categories of cultural goods most vulnerable to illicit traffic.

ICOM publishes the Red Lists with the scientific collaboration of national and international experts and the support of dedicated sponsors, to cover the most vulnerable areas of the world in terms of illicit trafficking of cultural objects. The lists are published in different languages according to the context of each list. Among other successes, these tools have contributed to the identification, recovery and restitution of thousands of cultural objects from Iraq, Afghanistan and Mali.