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What Is Chanukah?

What does “Chanukah” mean? Why isn’t Chanukah seven days long? Why do we give presents?

Thinking about Chanukah?

This Chanukah, give the gift of a one- or two-year subscription to Jewish Action, the OU’s quarterly magazine.

Prayer for the Israeli Defense Forces

With ongoing wars in both Lebanon and Gaza, please have the IDF in your tefillot. Download prayer cards in English or Hebrew to pray for the soldiers of the IDF.

Elevating Jewish Life

The Orthodox Union and its programs are here to connect Orthodox Jews to their identity and heritage by providing the resources necessary to do so.

The Stories of Our Heroes

Join Rabbi Yisrael Motzen as he interviews some of those who participated in the OU’s B’Yachad Lanetzach project, which pairs shuls and schools with fallen soldiers to commemorate.

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OU Programs

NCSY is proud to play an important and trusted role in the lives of thousands of Jewish teens each...

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Yachad, an international organization, is dedicated to enhancing the life opportunities of Jewish individuals with disabilities.

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OU Kosher combines expertise in halacha with an understanding of modern food production to ensure that kosher food...

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Teach Coalition secures government funding for Jewish day schools and yeshivot.

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Since 1979, OU Israel has been making a difference in Israel, touching the lives of children and adults,...

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The OU Women’s Initiative works with Orthodox communities worldwide to identify and address women’s spiritual, educational, and communal...

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Torah Initiatives comprises a broad array of innovative and impactful Torah programming.

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The OU Advocacy Center is the nonpartisan public policy arm of the OU that advocates on behalf of...

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Strengthening Parents, Strengthening Families, Strengthening Communities

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The OU Pepa and Rabbi Joseph Karasick Department of Synagogue & Community Services provides religious, educational, social, and...

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Now in its 20th year, the OU-JLIC’s (Seif Jewish Learning Initiative on Campus) network of Torah directors provide...

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The Center for Communal Research evaluates the OU’s impact on the communities it serves, while producing actionable insights...

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Israel Free Spirit Birthright, the OU’s Birthright Israel program, aims to keep the Jewish community vibrant by connecting...

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Built on mentorship-based growth and early-stage funding, the OU Impact Accelerator identifies and advances promising Jewish nonprofits that...

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OU Press publishes popular and scholarly works that reflect the broad spectrum of Orthodox Jewish values in the...

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Whether it’s the critically acclaimed Jewish Action magazine or the OU Guide to Passover, OU Publications has something...

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Thank you for your generous support of our vital programs.
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The annual Impact Report is a snapshot of where we’ve been. Here are some of the new initiatives that...
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Upcoming Jewish Holidays

Upcoming Holidays

  • Asarah B'Tevet

    Begins in the morning of Jan 10, 2025

    Ends in the evening of Jan 10, 2025
  • Tu B'Shevat
    Begins in the evening of Feb 12, 2025
    Ends in the evening of Feb 13, 2025
  • Fast of Esther

    Begins in the morning of Mar 13, 2025

    Ends in the evening of Mar 13, 2025
  • Purim
    Begins in the evening of Mar 13, 2025
    Ends in the evening of Mar 14, 2025
  • Shushan Purim
    Begins in the evening of Mar 14, 2025
    Ends in the evening of Mar 15, 2025
See All Holidays

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