Guam Adventist Academy (GAA) is a K-12 private school run by the Seventh-day Adventist Church in Guam and the Seventh-day Adventist Guam Micronesia Mission, in Yona, Guam. The school's Windward Hills campus is across the street from the Windward Hills Golf Club. In 1949, Pastor Dunton founded what would become the GAA in Dededo, with an enrollment of 26 pupils. The second GAA school in Talofofo was opened in 1951. By 1957, the two schools merged into one K-12 institution, located in Agaña Heights. In July 1963, the institution secured what would become its current location in Windward Hills.