The Academy of Our Lady of Mercy, Lauralton Hall is a parochial, Roman Catholic, all-girls high school at 200 High Street in Milford, Connecticut, United States. It is part of the Roman Catholic Archdiocese of Hartford. Lauralton Hall was established in 1905 by the Sisters of Mercy. It is the oldest Catholic college-preparatory school for girls in Connecticut. In August 2011, it was added to the National Register of Historic Places by the Connecticut Historic Preservation Council.