Mellon Park is a park in the Shadyside and Point Breeze neighborhoods of Pittsburgh, Pennsylvania, straddling both sides of Fifth Avenue, from approximately Shady Avenue to Penn Avenue, the western corner abutting Pittsburgh Center for the Arts building. The park is home to the Walled Garden, and holds events throughout the year. It is also home to several recreational facilities. A number of public buses serve the area.
The park is on the list of landmarks recognized by the Pittsburgh History and Landmarks Foundation (PHLF).
The park was established in 1943, on the grounds of the former estate of Richard B. Mellon. His was the largest mansion in Pittsburgh. The mansion was razed by Italian immigrants from New Kensington, PA under the direction of Monsignor Nicola Fusco. These industrious men then built the monumental Mount St. Peter Church in New Kensington which still stands and functions to this day from the materials of the Mellon Mansion. The gardens were originally designed in 1912 by Alden and Harlow. Several other architects added their own touch to the landscape including the Olmsted Brothers and some seventeen years after the garden began, Vitale and Geiffert. After Mellon's sixty-room home was brought down during World War II, most of the garden still remained and was transformed into a city park known now as Mellon Park. The park also contains the Phipps Garden Center and Pittsburgh Center for the Arts.