HMS Ballahoo (also Balahou, Ballahou or Ballahon) was the first of the Royal Navy's Ballahoo-class schooners, vessels of four 12-pounder carronades and a crew of 20. The prime contractor for the vessel was Goodrich & Co., in Bermuda, and she was launched in 1804. She patrolled primarily in the Leeward Islands, taking several small prizes, before an American privateer captured her in 1814 during the War of 1812.