Agudath Israel of America (Hebrew: אגודת ישראל באמריקה‎), is a Haredi Jewish communal organization in the United States loosely affiliated with the international World Agudath Israel.

Agudah in the United States has been very successful in retaining its major Hasidic factions, with members from the Ger Hasidim in America working together within the organization and its non-Hasidic Lithuanian rosh yeshivas as partners. Agudah represents the vast majority members of the yeshiva world, sometimes known by the old label of misnagdim, as well as sectors of Hasidic Judaism; all are commonly known as Haredim or "ultra-Orthodox" Jews representing Torah Judaism in North America.

It has ideological connections with both the Agudat Israel party and with Degel HaTorah (Hebrew, "Flag of Torah"), two Israeli Orthodox Jewish political parties that have representation in the Knesset (Israel's parliament). In Israel, Degel and Agudah are in a political coalition called United Torah Judaism (UTJ).

AIA is also a part of the World Agudath Israel organization, which convenes international conferences and religious conclaves.