B’nai B’rith International CEO Daniel S. Mariaschin today announced his retirement after 37 years with the organization, effective June 30, 2026.

During a Board of Directors meeting, Mariaschin, told board members and staff, “It was a great privilege to lead a legacy organization, now 182-years-old, that has, and is contributing so much to, Jewish life around the world. Thank you all for this fantastic ride I’ve had over all these years.”

Mariaschin has worked in the Jewish professional world for 53 years.

At the Board of Directors meeting, President Robert Spitzer credited Mariaschin with the organization’s success: “B’nai B’rith is as strong as we are in large measure because of his leadership.”

Former B’nai B’rith President Richard Heideman noted, “It will be impossible to fill his shoes.”

Mariaschin began working at B’nai B’rith in 1988 and became chief executive officer in 1999.

As the organization’s top executive officer, Mariaschin directs and supervises B’nai B’rith programs, activities and staff around the world. In addition to his CEO role, Mariaschin also serves as director of B’nai B’rith’s International Center for Human Rights and Public Policy. In these positions, he is the spokesman for B’nai B’rith, interpreting its policies to a variety of audiences, including the U.S. Congress, world leaders, global diplomats and the media, with responsibility for coordinating the organization’s programs and policies on issues of concern to the Jewish community.

Mariaschin’s contacts, his depth and breadth of knowledge of today’s issues and the history that lead us to them, are unparalleled.

Mariaschin chairs global panels and committees, and is out front on every issue that impacts the organization’s work, ensuring that he adds his limitless background of knowledge and know-how to every subject important to B’nai B’rith and the Jewish people.

In the United States and abroad, Mariaschin has met with scores of heads of state, prime ministers, foreign ministers, opposition leaders, religious leaders and influential members of the media, to advance human rights and to help protect the rights of Jewish communities worldwide as well as to promote strong relations with the State of Israel. He has been involved in seeking restitution for Holocaust survivors and their families for more than three decades.

Mariaschin has spent nearly all of his professional life working on behalf of Jewish organizations, beginning in 1973 as community relations associate with the Jewish Community Council of Boston. Two years later he was named director of the New England office of the American Zionist Federation and Zionist House in Boston.

In 1977, Mariaschin joined the Anti‑Defamation League of B’nai B’rith as director of its Middle East Affairs Department. From 1979 to 1986, he served as assistant to ADL’s national director, the late Nathan Perlmutter, and as director of its National Leadership division, responsible for ADL’s nationwide program of leadership development. He then became director of the Political Affairs Department of the American Israel Public Affairs Committee (AIPAC), where he supervised political action activities and grassroots organization programs.

A noted lecturer who speaks nationally and internationally, Mariaschin delivered the distinguished Gandel Oration in Melbourne, Australia in 2016. In 2017, he addressed a special meeting of the Foreign Affairs and Defense Committee at Israel’s Knesset convened in honor of the centenary of the Balfour Declaration.