Several vessels of the Royal Navy have been named HMS Nonsuch, presumably named after Nonsuch Palace:
- HMS Nonsuch (1603), a 38-gun great ship, rebuilt from a previous ship and sold c. 1645.
- HMS Nonsuch (1646), a 34-gun ship launched in 1646 and wrecked 1664.
- Nonsuch (ship), an 8-gun ketch purchased in 1654 and sold in 1667, later as the civilian vessel Nonsuch making the trading voyage establishing the Hudson's Bay Company.
- HMS Nonsuch (1668), a 36-gun fifth rate launched in 1668. Upgraded to a 42-gun fourth rate in 1669, but reverted to 36-gun fifth rate in 1691. She was captured in 1695 by the French privateer Le Francais.
- HMS Nonsuch (1686), a 5-gun hoy launched in 1686 and sold 1714.
- HMS Nonsuch (1696), a 48-gun fourth-rate ship of the line, launched in 1696, rebuilt 1717, and broken up in 1745.
- HMS Nonsuch (1741), a 50-gun fourth-rate ship of the line in service from 1741 to 1766.
- HMS Nonsuch (1774), a 64-gun third-rate ship of the line launched in 1774, used as a floating battery from 1794, and broken up in 1802.
- HMS Nonsuch (1915), an M-class destroyer launched in 1915 and sold in 1921.
- HMS Nonsuch (1945), a sloop laid down in February 1945 and canceled in October of that year.
- HMS Nonsuch (D107), the former German Narvik-class destroyer Z38 taken after the war's end, and scrapped in 1949.