The Carlton Gardens is a World Heritage Site located on the northeastern edge of the Central Business District in the suburb of Carlton, in Melbourne, Australia. A popular picnic and barbecue area, the heritage-listed Carlton Gardens are home to an array of wildlife, including brushtail possums.

The 26-hectare (64-acre) site contains the Royal Exhibition Building, Melbourne Museum and Imax Cinema, tennis courts and an award-winning children's playground. The rectangular site is bound by Victoria Street, Rathdowne Street, Carlton Street, and Nicholson Street. From the Exhibition building the gardens gently slope down to the southwest and northeast. According to the World Heritage listing the Royal Exhibition Buildings and Carlton Gardens are "of historical, architectural, aesthetic, social and scientific (botanical) significance to the State of Victoria."

The gardens are an example of Victorian landscape design with sweeping lawns and varied European and Australian tree plantings consisting of deciduous English oaks, White Poplar, plane trees, elms, conifers, cedars, turkey oaks, Araucarias and evergreens such as Moreton Bay figs, combined with flower beds of annuals and shrubs. A network of tree-lined paths provides formal avenues for highlighting the fountains and architecture of the Exhibition building. This includes the grand allee of plane trees that lead to the exhibition building. Two small ornamental lakes adorn the southern section of the park. The northern section contains the museum, tennis courts, maintenance depot and curator's cottage, and the children's playground designed as a Victorian maze. Dramatic tree-lined avenues, a majestic fountain, formal flowerbeds and miniature lakes are features of these late nineteenth century Gardens.

The listing in the Victorian Heritage Register says in part: 

The Carlton Gardens are of scientific (botanical) significance for their outstanding collection of plants, including conifers, palms, evergreen and deciduous trees, many of which have grown to an outstanding size and form. The elm avenues of Ulmus procera and Ulmus × hollandica are significant as few examples remain world wide due to Dutch elm disease. The Garden contains a rare specimen of Acmena ingens, only five other specimens are known, an uncommon Harpephyllum caffrum and the largest recorded in Victoria, Taxodium distichum, and outstanding specimens of Chamaecyparis funebris and Ficus macrophylla, south west of the Royal Exhibition Building.