HMS Bacchus was a schooner of the Adonis class of the Royal Navy during the Napoleonic War. She was built at Bermuda using Bermudan cedar and completed in 1806. Bacchus was commissioned in 1806 under Lieutenant John Skinner. She sailed to Britain where she made good defects at Plymouth between 12 September and 29 November. She returned to the West Indies. On 27 May 1807 she captured the Concord, Babcock, master. The French captured Bacchus in August 1807 at an unknown date and under unknown circumstances.