Which Dragon joined Dragons' Den in 2021 as the show's youngest investor?

Steven Bartlett joined Dragons' Den in 2021 as the show's youngest investor.

Bartlett became known as a technology entrepreneur and co-founder of Social Chain, a social-media marketing company. His business background and public profile made him a notable addition to the BBC panel, particularly for pitches involving online brands, digital communities and modern marketing.

His appointment was widely described as making him the youngest Dragon in the programme's history. That distinction refers to age when joining the panel, not to the age of a business he backed or to the youngest entrepreneur ever to pitch in the den.

Bartlett also became known for The Diary of a CEO podcast, but that is separate from his Dragons' Den role. The answer is therefore the individual investor, not his company, podcast or a fellow technology-focused Dragon.