The International Association of Meteorology and Atmospheric Sciences (IAMAS) is a non-governmental organization promoting atmospheric sciences through conferences, workshops and publications.

[1] IAMAS and its commissions bring together experts from around the world to enhance scientific understanding and prediction of the atmosphere’s behavior and its connections to and effects on other components of the Earth’s geophysical system.

[2] IAMAS is one of eight associations of the International Union of Geodesy and Geophysics (IUGG).

Since 1993, it has been called "The International Association of Meteorology and Atmospheric Sciences.

"[5] IAMAS consists of ten commissions: A Bureau comprising the President, two Vice Presidents, and the Secretary General, guided by the IAMAS statutes, deals with the management of the organization.