ROM DOS may refer to:
Datalight ROM-DOS, a ROMed version of DOS by Datalight since 1989 General Software Embedded DOS-ROM, a ROMed version of Embedded DOS by General Software since 1990 MS-ROMDOS, a ROMed version of MS-DOS by Microsoft
See also ROM Operating System (ROS), a ROMed version of Digital Research's DR DOS since 1988 DOS Plus, a ROMable DOS DR DOS, a ROMable DOS PalmDOS, a ROMable DOS