The Echo class was a class of multi-purpose hydrographic survey ships in commission with the Royal Navy. The ships were primarily tasked with conducting survey work in support of submarine and amphibious operations, however, the class also has a secondary role in mine countermeasures. The two vessels of the class were the most recent additions to the Royal Navy's Hydrographic Squadron. Each ship displaced approximately 3,700 tonnes, and was equipped with a state of the art suite of equipment. The lead ship of the class, HMS Echo, was retired in 2022 and her sister ship in 2023.

HMS Echo was the first of two multi-role hydrographic survey ships commissioned by the Royal Navy. With her sister ship, HMS Enterprise, they formed the Echo class of survey vessels. She was built by Appledore Shipbuilders in Devon in 2002 and was the ninth Royal Navy vessel to carry the name. She was retired from service in 2022.