Which Dragons' Den investor became the youngest Dragon when he joined the show in 2021?

Steven Bartlett became the youngest Dragon when he joined Dragons' Den in 2021.

Bartlett joined the BBC programme for its nineteenth series, becoming one of the first new investors to represent the technology and social-media business world so prominently. He was known before joining the show as the co-founder of Social Chain, a social-media marketing agency.

His appointment was notable because he brought a younger entrepreneurial profile than most earlier Dragons. Bartlett was born in 1992, making him 28 when the BBC announced his appointment and 29 during the series' broadcast period.

The title refers to the age at which he joined the panel, not to the youngest entrepreneur ever to pitch on the programme. Bartlett is also associated with The Diary of a CEO podcast, but that separate media work is not the basis of his Dragons' Den role.