Rob could refer to:
- The shortened form of Robert
- R.O.B., Short for Robotic Operating Buddy or ROB The Robot, an external attachment made for the NES in 1985
- ROB 64, an important robot character in the Star Fox series
- Report on Business, the business section of the Globe and Mail
- Robbery
- Rise of Blockland, an economy mod for the game Blockland.
- ROB, Re-order buffer for out-of-order execution in microprocessors
- Roberts International Airport in Monrovia, Liberia
