Princess Kalani Ahumanu i Kaliko o Iwi Kauhipua o Kīnaʻu, also known as Elizabeth Kīnaʻu (c. 1805 – April 4, 1839) was Kuhina Nui of the Kingdom of Hawaiʻi as Kaʻahumanu II, Queen regent and Dowager Queen.

Her father was King Kamehameha I and her mother was Kalākua Kaheiheimālie. She was born probably in 1805 on the island of Oʻahu at Waikiki. She was given in hānai to her stepmother Peleuli and her second husband Kawelookalani, her father's half-brother. Peleuli named her Kīnaʻu after her son Kahōʻanokū Kīnaʻu (her half-brother) and took her back to the island of Hawaiʻi after Kamehameha moved his capital back to Kailua-Kona.

Kīnaʻu was first married to her half-brother Liholiho (1797–1824) who ascended in 1819 as King Kamehameha II. In 1824, quite young, she became Dowager Queen when Kamehameha II died in London together with his favorite wife (her sister) Queen Kamāmalu.

Her second husband was Kahalaiʻa Luanuʻu, a grandson of Kamehameha I. She had two children, one who was adopted by another high-ranking chiefly family and the other a son who perished along with his father in the whooping cough epidemic of 1826. Her third husband was Mataio Kekūanāoʻa (1791–1868), from 1827. Queen Kaʻahumanu was furious over their union because of his inferior rank and her wish that she married Kamehameha III in accordance with their father's wish that his children by Keōpūolani would continue his line with his children by Kaheiheimālie. Kekūanāoʻa was governor of Oʻahu (1834–1868). To him she bore four sons: David Kamehameha (1828–1835), Moses Kekūāiwa (1829–1848), Lot Kapuāiwa (1830–1873), and Alexander Liholiho (1830–1873), and one daughter Victoria Kamāmalu (1838–1866).

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