J. R. Kealoha (died March 5, 1877) was a Native Hawaiian and a citizen of the Kingdom of Hawaiʻi, who became a Union Army soldier during the American Civil War. Considered one of the "Hawaiʻi sons of the Civil War", he was among a group of more than one hundred documented Native Hawaiian and Hawaiʻi-born combatants who fought in the American Civil War while the Kingdom of Hawaiʻi was an independent nation.