Frederick Law Olmsted (1822–1903), American landscape architect and public administrator.
Frederick Olmsted may also refer to: Frederick Law Olmsted Jr. (1870–1957), his son, American landscape architect and city planner Frederick E. Olmsted (1872–1925), American forester Frederick Olmsted Jr. (1911–1990), American artist and biophysicist
See also Fred Olmstead (1881–1936), American baseball player