Parque Isabel la Católica, Public park in Gijón, Spain

Parque Isabel la Católica is an urban park of 151,857 m² in the El Bibio neighbourhood of Gijón, on the left bank of the Piles. It was designed in 1941 by Ramón Ortiz and finished in 1967. Its two ponds, a main lake of 7,000 m² and 0.8 m deep plus a smaller one, remain from the former marsh of the charca del Piles.

The park was designed in 1941 by Ramón Ortiz on the marshy ground known as the charca del Piles or Llamarga del Molinón, on the left bank of the Piles river, and construction was completed in 1967. Its two ponds survive from those former wetlands. The first monument to Alexander Fleming anywhere in the world was inaugurated here on 18 September 1955, paid for by a public collection among the people of Gijón, with his widow Amalia Fleming present.

The park's name honours Queen Isabella I of Castile, and a stone monument to her by Marino Amaya was placed here in 1965. A bronze monument to Alexander Fleming, the first dedicated to him anywhere, was unveiled on 18 September 1955 with his widow Amalia present; it was funded by a public collection among the people of Gijón.

The park has paved walkways, several playgrounds for children, and plenty of seating throughout. Restroom facilities are available, and the terrain is generally accessible for visitors of different mobility levels.

The park's large aviary holds pheasants and emus, not ostriches; emus are the big flightless birds visitors will actually see there. The aviary sits alongside a dovecote, and the two ponds draw herons, teals and pochards that winter in Gijón.