Alto Velo Island is a small uninhabited island south of the island of Hispaniola in the Caribbean Sea. Its maximum height is about 152 metres above sea level. It lies on an underwater mountain range which continues to Beata Island (about 12 km away, separated by the Alto Velo Channel) and the southwestern coast of the Dominican Republic. It has an area of 1.02 km² and is 1.4 km long, being oval in shape.