Holocaust Memorial and Tolerance Center of Nassau County

The Holocaust Memorial and Tolerance Center of Nassau County is a Holocaust memorial, a museum and a tolerance center in Glen Cove, on the North Shore of Long Island in New York State. The museum and tolerance center is situated within the original Gold Coast Mansion "Welwyn", in what is now Welwyn Preserve County Park. The memorial also includes the adjoining garden, which was originally designed by the Olmsted Brothers, the influential American landscape architectural firm.

As of 2014, the museum is open on Mondays to Fridays from 10:00 am to 4:30 pm, and on Saturdays and Sundays from 12:00 pm to 6:00 pm.