Deborah Kapule Kekaihaʻakūlou (c. 1798–1853) was the last Queen of Kauaʻi (as wife to Kaumualiʻi) before the establishment of the Kingdom of Hawaiʻi by King Kamehameha I.
She was born around 1798; the location of her birth is not known for certain but, since she lived around Waimea and since she received property there from her father in later life, it is assumed that this was her birthplace.
In spite of the fact that the monarchy had taken her two husbands (metaphorically speaking, Kaʻahumanu was the Head of State at the time), Deborah remained faithful to the Kingdom of Hawaiʻi.
When Humehume’s (another of Kaumualiʻi’s sons) men arrived at the Russian Fort to try and reinstate the Kingdom of Kauaʻi, Deborah fought against them.
It was not until 1838, when Kamehameha III granted an appeal, that Deborah was returned to Kauaʻi by Reverend William Richards.