Nassau County District Attorney's Office

About Nassau County District Attorney's Office

The Nassau County District Attorney's Office is a government prosecutorial office on Long Island, New York. Its stated function is to investigate and prosecute violations of state and local criminal statutes within Nassau County. The office reports nearly 250 attorneys and a total staff above 450. It is headed by District Attorney Anne T. Donnelly, who was elected in 2021 as the 17th holder of the post.

The Litigation Division prosecutes criminal cases in the county's courts through seven bureaus, and the Investigations Division looks into complex criminal activity and prosecutes the resulting cases. Other units cover administration, legal training, crime victim services, community engagement, and a complaint process that includes a dedicated tip line. The office lists locations in Mineola, Hempstead, Long Beach and Glen Cove, with its main mailing address at 262 Old Country Road in Mineola.

Practice areas

Areas of work that Nassau County District Attorney's Office describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.

Organization profile based on its official website and public sources (reviewed October 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Nassau County District Attorney's Office.

Registered attorneys

Registration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.