Acropora dendrum is a species of acroporid coral that was first described by Bassett-Smith in 1890. Found in tropical, shallow reefs in areas of powerful waves at depths of 5 to 20 m (16 to 66 ft), it is threatened by disease. The species is rated as vulnerable on the IUCN Red List, with a decreasing population. It is not common but found over a large area, and is listed on CITES Appendix II.