Other
- HMS Lennox, the name of two ships of the Royal Navy
- Lennox (character), a fictional character, the "Thane of Lennox" in Macbeth
- Lennox-Gastaut syndrome (LGS), also known as Lennox syndrome, a difficult-to-treat form of childhood-onset epilepsy
- Lennox Football Club, a 19th century English rugby club.
- Lennox Generating Station, an electrical generating station in Ontario, Canada
- Lennox Stakes, a horse race
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