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Guide to the Office of the County Clerk (PDF)

Filing Business Names & Corporations in Nassau County (PDF)

Notary Public Guide (PDF)

Passport Services (PDF)

Nassau County Clerk Veteran Services

Historical Guide to Nassau County (PDF)

Students Resource Guide to Nassau County (PDF)

Caring For Our American Flag (PDF)

Guide to Obtaining Vital Documents

  1. Maureen OConnell

    Maureen O'Connell

    County Clerk

    Alert: Child Victim Act Procedures (PDF)

    Sandy Refund Application (PDF)

    County Clerk Alerts

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News Flash

  1. ATTENTION SENIORS: FREE FLU SHOTS

    Nassau County Clerk Maureen O’Connell & Northwell Health are pleased to announce free flu shots for senior citizens in the community. This year’s program will be held on Tues, Oct 7, 2025 from 9am to 1pm at American Legion Post No. 144 in Williston Park. Read on...
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