Barron joined Virgin Media in March 2008 and since then has led the company's strategy development and, more recently, overseen a reorganisation of the company's customer operations and network teams.
His appointment will take effect on 4 January.
Barron brings years of experience working in the pay-TV sector. Before joining Virgin, he was previously chief executive of pan-Scandinavia pay-TV broadcaster Viasat, and chief operating officer at its parent, Modern Times Group, which operates various TV and online business in Scandinavia and eastern Europe.
Before that, he worked at pan-European pay-TV group UPC's video-on-demand operations and the Disney Channel in Europe.