HMS Dittisham was one of 93 ships of the Ham-class of inshore minesweepers. Their names were all chosen from villages ending in -ham. The minesweeper was named after Dittisham in Devon.
Dittisham was built by Fairlie in 1954. She was placed in reserve, but in 1968 became a training tender to RNTE Shotley, then transferred to HMS Raleigh at Torpoint in 1973. In March 1983, she was sold to the Kingston Sea Cadets and became TS Steadfast. In April 1997, she was towed to Pounds Shipyard at Portsmouth and broken up.