HDMS Delphinen was a brig of the Royal Dano-Norwegian Navy, launched in 1805 at Nyholm.

The British Royal Navy captured her in 1807 at the Danish surrender after the Battle of Copenhagen.

She was one of six Lougen-class brigs that the naval architect Ernst Wilhelm Stibolt designed and that the British captured in 1807.

[1] On the evening 3 August Delphinen was cruising off the coast of Holland enforcing the British blockade.

The court martial of Commander Harward, his officers, and crew found that she had gone ashore at the island of Vlieland as a result of the master's gross negligence and inattention.