Iivo Ahava (born Afanasev, 19 February 1896, died 16 April 1919) was a Karelian-born Finnish military officer and nationalist who supported the idea of an independent East Karelia. In the 1918 Finnish Civil War, Ahava led a Red Guard unit fighting against the Whites on their Viena expedition. During the Allied North Russia Intervention, Ahava served as a lieutenant in the British organized units of Murmansk Legion and Karelian Regiment. He was murdered in unclear circumstances in East Karelia.