Arnoldus Isaac Zacharias Mononutu (4 December 1896 – 5 September 1983) was a nationalist involved in the struggle for Indonesian independence. Mononutu gained his sense of Indonesian nationalism during his post-secondary studies in the Netherlands. In the early years of the Indonesian government, he served as Information Minister and was the first Ambassador of Indonesia to China. He later became Rector of Hasanuddin University. Mononutu was posthumously given the honorary title of National Hero of Indonesia in 2020.