RMAS Magnet (A114) was the eponymous Royal Navy Magnet-class degaussing ship. She was completed in 1979 by Cleland.
As well as the Magnet, a sister ship, was built by Cleland in 1980.
The Magnet class was developed to replace the s that had been converted for degaussing. They are 828 tons gross register tonnage (GRT) and have a top speed of . They measure long with a beam of and a draught of .