Phoenix Park () is an
urban park in
Dublin,
Ireland, lying 2–4 km west of the city centre, north of the
River Liffey. Its 11 km perimeter wall encloses , one of the largest walled city parks in Europe. It includes large areas of grassland and tree-lined avenues, and since the seventeenth century has been home to a herd of wild
Fallow deer. The English name comes from the Irish
fionn uisce meaning "clear water". The Irish Government is lobbying
UNESCO to have the park designated as a world heritage site.