The American Association of Immunologists (AAI) is an international scientific society dedicated to furthering the study of immunology.

[1] The American Association of Immunologists is an association of professionally trained scientists from all over the world dedicated to advancing the knowledge of immunology and its related disciplines, fostering the interchange of ideas and information among investigators, and addressing the potential integration of immunologic principles into clinical practice.

[5] The AAI was founded on June 19, 1913, in Minneapolis, Minnesota, by a group of physicians who were attending the annual meeting of the American Medical Association.

[1] The original 41 members of the society were all disciples of Almroth Wright, the founder and director of the Inoculation Department at St. Mary's Hospital in London.

[11] Its membership includes principal investigators, postdoctoral fellows, graduate students, administrators, and other professionals dedicated to furthering the study of immunology.