right|300px|thumb|The corvette Najaden under sail, by [[Christoffer Wilhelm Eckersberg ]]
Several ships of the Royal Danish-Norwegian Navy (1509–1814) and the Royal Danish Navy have borne the name Najaden, after the mythological water spirit__NOTOC__, including:
- , a frigate (1796–1807)
- , a frigate (1811–1812)
- , a corvette (1820–1852)
- , a corvette (1854–1865)
- , a submarine (1913–1931)
- , a torpedo boat (1947–1966), originally named Najaden
- , a patrol vessel (Danish: bevogtningsfartøj) (1963–1991)
- , a
See also
- Najaden, 1858 to 1907 - a Norwegian commercial brig (history)
- , 1918, a gaff-schooner called Najaden until 2011