The 2019–20 Appalachian State Mountaineers women's basketball team represented Appalachian State University in the 2019–20 NCAA Division I women's basketball season. The Mountaineers, led by sixth year head coach , played their home games at George M. Holmes Convocation Center and were members of the Sun Belt Conference. They finished the season 11–18, 8–10 in Sun Belt play to finish in eighth place. The Mountaineers were eliminated in the First Round of the Sun Belt tournament to Little Rock by the score of 47–48. Shortly after being eliminated, the Sun Belt canceled the tournament due to the COVID-19 pandemic, which was followed shortly by the NCAA cancelling all post-season play.