Duncan is the first name of the Dragon's Den investor known as Bannatyne.
Duncan Bannatyne is a Scottish entrepreneur, author and philanthropist who became prominent through businesses in health clubs, hotels and care homes. He appeared as an investor on the British version of Dragon's Den, where his background in building service businesses informed his assessment of entrepreneurs and their growth plans.
The surname Bannatyne is especially associated with the Bannatyne health-club group. That business became one of the most recognisable parts of his commercial profile, although his career began with earlier ventures, including businesses connected with ice cream and nursing homes. His television fame therefore followed a substantial entrepreneurial career rather than creating it.
The name can be confused with other Dragons because the panel has included several investors with short, distinctive first names. Duncan Bannatyne is the complete identity, while “Bannatyne” alone is a surname. He was also known for his direct questioning style and for considering whether a business could expand beyond its original local market.