The Croatian Naval Legion (), officially known as the Croatian Naval Battalion - Black Sea was a military unit of the Navy of the Independent State of Croatia which fought as part of the Kriegsmarine on the Eastern Front. Upon its formation the unit had 343 men. Upon deployment the legion received a large influx of Ukrainian volunteers, which raised the size of the unit to 1,000 men. Members of the legion rescued Erich von Manstein from a boat fire.