Søehesten ("The Seahorse") was an 18-gun barge (in Danish: defensionspram) of the Royal Dano-Norwegian Navy, commissioned in 1795. During the Battle of Copenhagen on 2 April 1801, it was commanded by Lieutenant (Danish: Premierløjtnant) B. U. Middelboe with a complement of 178 sailors. 12 of the ship's crew were killed in the battle, and 21 wounded. The ship struck its colours at 14.30.

References