Iaukea was decorated with the Royal Order of Kapiolani and the Royal Order of the Crown of Hawaii in 1884, and biographies of him claim he also received all the Hawaiian orders during the reign of Kalākaua, i.e. the honors of the Royal Order of Kamehameha I, the Royal Order of Kalākaua, and the Royal Order of the Star of Oceania. He also received many foreign honors and decorations including Commander (Third Class) Order of the Crown of Thailand, Commander of an unspecified order from the Ottoman Empire, Grand Cross and Cordon of Order of Saint Stanislaus of Russia, the Grand Cross and Ribbon of the Order of the Cross of Takovo of Serbia, the Legion of Honour of France, Grand Cross of the Order of the Crown of Italy, Knight Commander of the Order of St. Olav of Sweden-Norway, Knight Commander of the Order of the Rising Sun of Japan, the Belgian Red Cross, Grand Officer of the Order of the Liberator of Venezuela, the British Queen Victoria Golden Jubilee, and Diamond Jubilee Medal.