John Owen ʻAimoku Dominis (January 9, 1883 – July 7, 1917) was the illegitimate son of John Owen Dominis and Mary Purdy Lamiki ʻAimoku, and the adopted (hānai) son of Queen Liliʻuokalani of the Kingdom of Hawai'i. He served as a Trustee of Queen Liliʻuokalani's Trust, in which he was named a beneficiary.