HMS Louisa

Four ships of the Royal Navy have been named HMS Louisa:


 * HMS Louisa (1794) was a 3-gun gunvessel, previously a hoy, purchased in 1794 and sold in 1798.
 * HMS Louisa was also a 3-gun vessel, separate from the above, purchased in 1798 and sold in 1799.
 * HMS Louisa (1814) was a tender in service in 1814 and sold in 1816.
 * HMS Louisa (1834) was a cutter purchased in 1834. She foundered in 1841.
 * HMS Louisa (1855) was an Albacore-class gunboat wooden screw gunboat launched in 1855 and sold in 1867.