Parc Olry, Municipal park in the Saint-Pierre district of Nancy, France

Parc Olry is a municipal park in the Saint-Pierre neighborhood covering about 4.5 hectares with a mix of old and young trees. The grounds hold plane trees, beeches, oaks, yews, chestnuts, and a collection of ginkgo biloba that create a layered canopy.

Parc Olry occupies the site of a 13th-century leper house placed under the protection of Saint Madeleine. Achille Olry bequeathed the grounds and two buildings standing there to the city of Nancy in October 1910, on condition that the buildings be demolished and the park opened to the public. The First World War delayed the opening until 1924; in the meantime the grounds were laid out and the city bought adjoining land for greenhouses. It was listed as a natural site by decree of 17 September 1947.

The entrance gate dates from the 18th century and once belonged to the Hotel de Mahuet. A commemorative bust of Ambroise-Auguste Liebeault stands among the planted areas as a local landmark.

The park's main entrance is the monumental 18th-century portal at 83 avenue de Strasbourg, near the central hospital and the church of Saint-Pierre. Just inside are an amphitheatre-shaped staircase and a small pond. The grounds cover two hectares, with a further 2.5 hectares of municipal greenhouses alongside.

The municipal greenhouses next to the park grow the flowering plants that decorate Nancy's flower beds each year. The park itself covers two hectares, while the greenhouses and their grounds add 2.5 hectares, making 4.5 hectares in all. The park has belonged to the Comité des parcs et jardins de France.