IASA

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