Leopold Park, Protected heritage park in Leopold Quarter, Brussels, Belgium

Leopold Park is a protected heritage park in the Leopold Quarter covering about 6.4 hectares with a central pond. The pond is fed by the Maelbeek stream and home to mallards, moorhens, coots, and Egyptian geese.

The park was established in 1880 on land that was once part of the medieval Eggevoorde Estate. Its early decades featured zoological gardens and scientific facilities that defined its purpose.

The park's name recalls King Leopold I, and its paths pass buildings from the former ULB campus: the Solvay Institute of Physiology, where the 1927 Solvay Conference met, and the former Solvay Library, now used by European think tanks. A bust of botanist Jean Jules Linden stands where his Victoria amazonica greenhouse once was.

The park is easily accessible via Maalbeek and Schuman metro stations on lines 1 and 5, both located nearby. It sits close to the European Parliament building, making it convenient to include in a visit to the area.

The Fifth Solvay Conference on Physics and Chemistry met in October 1927 in the Solvay Institute of Physiology, a building completed in 1894 that still stands in the park and now houses the Lycée Émile Jacqmain. The institute was founded by Ernest Solvay and Paul Heger of the Université libre de Bruxelles.