Arnaldo Ouana (born 22 December 1969) is a retired Mozambique international football player and current football coach. Arnaldo Ouana spent most of his career playing in the Mozambique football league, primarily with Clube de Desportos da Costa do Sol. He had a brief spell playing in Liga de Honra with Campomaiorense. Arnaldo Ouana made several appearances for the Mozambique national football team, including three appearances at the 1996 African Cup of Nations finals. He also played in two 1994 FIFA World Cup qualifying matches.