Elizabeth Kekaʻaniau Laʻanui Pratt, full name Elizabeth Kekaʻaniauokalani Kalaninuiohilaukapu Kekaikuihala Laʻanui Pratt, was a Hawaiian high chiefess (aliʻi) and great-grandniece of Kamehameha I, being a great-granddaughter of Kalokuokamaile, the older brother of Kamehameha I, founder of the Kingdom of Hawaii. She was the daughter of Gideon Peleʻioholani Laʻanui and Theresa Owana Kaheiheimalie Rives.

The Hawaiian Kingdom, also known as Kingdom of Hawaiʻi, was a sovereign state located in the Hawaiian Islands which existed from 1795 to 1893. It was established during the late 18th century when Hawaiian chief Kamehameha I, from the island of Hawaiʻi, conquered the islands of Oʻahu, Maui, Molokaʻi, and Lānaʻi, and unified them under one government. In 1810, the Hawaiian Islands were fully unified when the islands of Kauaʻi and Niʻihau voluntarily joined the Hawaiian Kingdom. Two major dynastic families ruled the kingdom, the House of Kamehameha and the House of Kalākaua.