Dragon's Den is the British business-investment show whose format was adapted into the US series Shark Tank.
The British programme is part of an international television format that originated in Japan. In each episode, entrepreneurs pitch companies or products to investors and seek funding in return for an ownership stake.
The US adaptation uses Sharks rather than Dragons, but the central idea remains the same. Other countries have produced their own versions under titles that reflect local language and culture.
The apostrophe is commonly written in the title as Dragon's Den, although international versions may use different punctuation or pluralisation. The British programme should also be distinguished from similarly themed business shows that do not use the investor-pitch format.