Advancing the IHRA Definition of Antisemitism

The International Holocaust Remembrance Alliance (IHRA) Working Definition of Antisemitism is the most widely recognized framework for identifying and addressing contemporary antisemitism worldwide. At its core, the definition describes antisemitism as “a certain perception of Jews, which may be expressed as hatred toward Jews,” while providing practical examples to help governments, institutions, and civil society recognize how antisemitism manifests in contemporary life.  

IHRA is not a Jewish institution, but an international body, because antisemitism and Holocaust remembrance are not only Jewish concerns, but shared international responsibilities. 

Why the IHRA Definition Matters

Antisemitism today appears in evolving and often subtle forms—from conspiracy theories and Holocaust denial to double standards applied to the State of Israel. Without a shared framework, these manifestations can go unrecognized or unaddressed.  

We cannot fight what is undefined. The IHRA definition provides clarity by: 

• Providing real-world examples of antisemitism across public life 

• Supporting legal and institutional accountability 

• Guiding education and training efforts 

• Enabling consistent data collection and policy responses 

The IHRA definition does not restrict free expression—it equips institutions to identify when rhetoric crosses into discrimination or incitement.

The Simon Wiesenthal Center’s Leadership

The Simon Wiesenthal Center (SWC) has been a leading force in advancing the adoption and implementation of the IHRA definition globally. Guided by our mission to combat antisemitism, defend the State of Israel, and preserve the lessons of the Holocaust, SWC works with governments and international partners to translate the IHRA definition into action. 

A key driver of this effort is Dr. Ariel Gelblung, SWC’s Director for Latin America. His leadership has helped secure its adoption across six countries, fifteen universities, and major international bodies including the Organization of American States (OAS) and the Latin American Parliament (Parlatino), as well as numerous legal, political, and civil These efforts have already produced significant legal impact.  

Courts across Latin America have applied the IHRA definition in a growing number of rulings, including more than fifteen in Argentina alone. In these cases, Dr. Gelblung has served as the most frequently cited expert witness on antisemitic issues in the region. Together, these decisions demonstrate how a clear, widely accepted framework enables courts and institutions to identify antisemitism and act when rhetoric about Israel crosses the line. 

SWC has also supported adoption efforts in major cities like Chicago and continues to advocate for broader implementation across North America and beyond. 

Turning Definition Into Action

Momentum behind the IHRA definition continues to grow globally. Argentina assumed the presidency of the International Holocaust Remembrance Alliance on March 18, 2026—the first Latin American country to do so. With Dr. Ariel Gelblung serving as part of Argentina’s IHRA delegation, this milestone highlights both the region’s leadership and the pivotal role of the Simon Wiesenthal Center’s Latin American office in advancing this work. 

On May 31, the Simon Wiesenthal Center will host a major international conference at Argentina’s Foreign Ministry in Buenos Aires, marking ten years of the IHRA Working Definition and serving as a preliminary gathering ahead of the first IHRA plenary ever held in Latin America. 

Through its work with IHRA and partners worldwide, the Simon Wiesenthal Center is helping ensure that the lessons of the Holocaust inform present-day action—and that antisemitism is identified, confronted, and challenged wherever it appears.