The Water Research Center of University of Kurdistan, in cooperation with the Rainwater Catchment Association and the Agricultural and Natural Resources Research and Education Center of Kurdistan (AREEO), has organized the 10^th International Conference on Rainwater Catchment Systems virtually. This conference will provide a great opportunity for a wide range of researchers in various fields of water science from around the world to share the latest experiences and research achievements related to rainwater catchment and integrated watershed management. The Secretariat of the 10^th International Conference on Rainwater Catchment Systems invites researchers, professors, students, experts, executive officials and other interested parties from around the world to participate and present papers at the conference.