高效率文件系统（High Performance File System，简称：HPFS），这是 IBM 给 OS/2 操作系统使用的文件系统。

是NTFS的原型，由于微软和IBM在开发OS/2中出现分歧而分裂，微软直接在本文档系统上直接继续开发为NTFS，导致两者都使用相同的分区标识，需要做额外的判断来确认具体对应的文档系统。

HPFS or High Performance File System is a file system created specifically for the OS/2 operating system to improve upon the limitations of the FAT file system. It was written by Gordon Letwin and others at Microsoft and added to OS/2 version 1.2, at that time still a joint undertaking of Microsoft and IBM, and released in 1988.