IASA may refer to:

• The Iranian American Sport & Culture Association, a Los Angeles-based sports diplomacy nonprofit organization
• The IETF Administrative Support Activity, an activity housed within the Internet Society (ISOC)
• The Improving America's Schools Act of 1994
• The International Association of Scientologists Administrations
• The International Association of Sound and Audiovisual Archives
• The International Aviation Safety Assessment Program of the US FAA
• The Irish Amateur Swimming Association
• The Israel Arts and Science Academy, Jerusalem, Israel
• Institución Atlética Sud América, football club from Montevideo in Uruguay
• International Association of Chinese Story Telling and Story Singing Art, organisation established in Luxembourg, promoting Chinese culture in Europe.

This disambiguation page lists articles associated with the title IASA.
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