Liliuokalani Botanical Garden, Botanical garden in downtown Honolulu, United States.

Liliuokalani Botanical Garden is a green space in central Honolulu planted with native Hawaiian species and tropical varieties found across different island zones. The grounds feature open grassy areas, tree-lined pathways, and groupings of plants organized by their ecological origins and growing conditions.

Parts of the garden were once Queen Liliʻuokalani's favourite picnic spot. She reigned from 17 January 1891 until her illegal deposition on 17 January 1893 by American political, military and business interests. She later bequeathed the land to the City and County of Honolulu for public enjoyment.

The garden carries the name of Lydia Liliʻuokalani, who reigned from 17 January 1891 until her overthrow on 17 January 1893. Parts of the grounds were her favourite picnic spot, and she later left the land to the City and County of Honolulu for public enjoyment. The garden is being developed to grow native Hawaiian plants only.

The garden sits on North Kuakini Street and is open daily without charge, closing only on Christmas and New Year's Day. Nuʻuanu Stream and the Waikahalulu waterfall lie within its 7 acres, so expect uneven ground near the water. Parts of the grounds are still being developed for native Hawaiian plants.

The garden occupies land that was once Queen Liliʻuokalani's favourite picnic spot, which she later bequeathed to the City and County of Honolulu for public use. It is one of five gardens in the Honolulu Botanical Gardens system, and its herbarium code with Botanic Gardens Conservation International is HLG.