List of Famous people named John

John Charles Olmsted (1852–1920), 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.

John Michael Kohler II was member of the Kohler family of Wisconsin and was a prosperous industrialist and mayor of Sheboygan, Wisconsin. Kohler founded what later became known as the Kohler Company, a large producer of bathroom and kitchen products.

John Wayne Olsen, AO is a former Australian politician, diplomat and football commissioner. He was Premier of South Australia between 28 November 1996 and 22 October 2001. He is now President of the Federal Liberal Party, Chairman of the Australian American Association, Chairman of the Adelaide Football Club and Deputy Chairman of the Adelaide Oval Stadium Management Authority.