 Coral reefs are declining worldwide, and monitoring activities are important for assessing the impact of disturbance on reefs and tracking subsequent recovery or decline. Remote sensing from satellites is an alternative and complementary approach that provides complete aerial coverage but cannot provide the level of detail and accuracy at a single point than a field survey. The review considers the state of the art of coral reef remote sensing for various objectives relevant to management, such as composition of the reef, environmental parameters, biodiversity, environmental threat, and ecosystem services. Advances in sensor technology and processing algorithms continue to drive forward remote sensing capability for coral reef mapping, particularly with respect to spatial resolution of maps and synthesis across multiple data products. This article was authored by John D. Hedley, Chris M. Ralph-Sema, Illyana Chollet, and others.