Hateruma-class patrol vessel (Japanese: はてるま型巡視船) is a class of PL type patrol vessels of the Japan Coast Guard. PL stands for "Patrol vessel Large", and the class name "Hateruma" is named after Hateruma-jima, the southernmost inhabited island of Japan. The JCG had intended to build a number of ships of this design for the successor of PL-101 Shiretoko-class, but this class may not suitable for SAR mission because of the insufficient low-speed mobility. So the construction project has switched to the PL-09 Kunigami-class, utilized variant of this class.