- Master address, the main, primary, or principal address under which many other addresses are listed.
- Master recording, the original of a visual or sound recording
- Sega Master System, an 8-bit cartridge-based video game console
- List of Battle Arena Toshinden characters#Master, a character in the Battle Arena Toshinden fighting game series
- Master Lock, a brand of padlock
- Renault Master, a van
- Alenia Aermacchi M-346 Master, an Italian military transonic trainer aircraft
- The Masters School, an independent school in New York
- Master (BDSM), the dominant partner in a relationship
- Miles M.9 Master, a British 2-seat monoplane advanced trainer built by Miles Aircraft Ltd for the Royal Air Force and Fleet Air Arm during the Second World War.
- Masters Home Improvement, an Australian Home Improvement Retailer.
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