Sixty-seven entities worldwide adopted the International Holocaust Remembrance Alliance's working definition of antisemitism in 2025, representing a 97.1% increase from 34 adoptions the prior year, according to a report from the Combat Antisemitism Movement released Tuesday.
The total number of governments, municipalities, universities and organizations that had adopted the definition reached 1,331 as of December 31, 2025.
"The continued momentum driving IHRA adoptions is fueled by a growing recognition of the definition, and its 11 contemporary examples, as the global gold standard for understanding how antisemitism manifests in today's world," Said Barney Breen-Portnoy, CAM's editor-in-chief.
Countries and jurisdictions that adopted the definition last year included Ireland and Costa Rica, along with universities Harvard, Columbia and Yale. Among municipalities were Mount Laurel, New Jersey and Chula Vista, California.
Twenty-five municipalities worldwide adopted the definition in 2025, with 14 located in the United States. Thirty-three educational institutions also adopted the framework, compared with one in 2024.
The report urged entities that have already adopted the definition to move toward formally codifying and implementing it, and called on advocates to encourage the 18 remaining U.S. States without adoption to do so.
"While no definition alone can eliminate antisemitism, the IHRA framework has proven itself over the past decade as an indispensable tool for exposing, preventing and fighting this ever-evolving form of hatred," Breen-Portnoy said. He added that the definition has served as "a common and authoritative benchmark" Helping institutions develop effective policies to counter antisemitism while strengthening accountability for perpetrators.