Forstbotanisk Have (lit. "Forestry Botanical Garden"), or Charlottenlund Arboretum, is a small unit under the Hørsholm Arboretum, which in turn is operated by the University of Copenhagen's Department of Geosciences and Natural Resource Management. It is located in the grounds of Charlottenlund Palace north of Copenhagen, Denmark. Forstbotanisk Have focuses on having as many different species as possible, while the main unit of the National Danish Arboretum in Hørsholm also focus on assessing various species for use in gardens and parks and in the forestry business.