John Charles Olmsted was an American landscape architect. The nephew and adopted son of Frederick Law Olmsted, he worked with his father and his younger brother, Frederick Law Olmsted Jr., in their father's firm. After their father retired, the brothers took over leadership and founded Olmsted Brothers as a landscape design firm. The firm became well known for designing many urban parks, college campuses, and other public places. John Olmsted's body of work from over 40 years as a landscape architect has left its mark on the American urban landscape.

Washington Park is a public urban park in Portland in the U.S. state of Oregon. It includes a zoo, forestry museum, arboretum, rose garden, Japanese garden, amphitheatre, memorials, archery range, tennis courts, soccer field, picnic areas, playgrounds, public art and many acres of wild forest with miles of trails.