Other
- Blenheim II, a racehorse that won the Epsom Derby
- Blenheim, the brown and white Cavalier King Charles Spaniel.
- Blenheim Ginger Ale, a beverage bottled in Blenheim, South Carolina, United States
- Blenheim High School, a school in Surrey, United Kingdom
- Blenheim Horse Trials, a competition held at Blenheim Palace
- Blenheim Orange, a cultivar of apple
- Blenheim apricot, a variety of apricot
- Bristol Blenheim, a World War II-era light bomber used primarily by the Royal Air Force
- HMS Blenheim, several ships of the Royal Navy
- Blenheim Royal (Schreiner 1990), a tall, blue, bearded iris (genus)
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