The Royal Naval Sailing Association (RNSA) is the governing body that oversees all aspects of sailing, both racing and recreational sailing cruises, throughout the British Royal Navy. The RNSA is a Service Sports Association, and is also the advisor to the Navy Board on sailing matters. It administers the Bosun dinghy as a one-design sailing class.
The Royal Naval Sailing Association was founded in , four years before the outbreak of the Second World War. It is headquartered at Haslar Marina, Gosport in Hampshire, England.
The aims of the Royal Naval Sailing Association are:
At the Royal Naval Sailing Association there is two categories of membership. Full members are serving or retired personnel of the Royal Navy, Royal Marines, Royal Fleet Auxiliary or Commonwealth or Allied Naval forces, including members from the Royal Naval Reserve, Royal Marines Reserve and naval cadet forces instructors. Full members are entitled to fly the undefaced blue ensign and the association's burgee, with the red cross.
Associate membership of the Royal Naval Sailing Association are for personnel that is serving or have retired from the British Army, Royal Air Force or Civil Service, in particular civil servants working in the Ministry of Defence. Also entitled to be an associate of the association are descendants of member in the RNSA. Associates of the RNSA fly the burgee with the blue cross and an undefaced red ensign.