Clementi was confirmed as preferred candidate for the post by prime minister Theresa May following his nomination by culture secretary Karen Bradley ahead of a formal transition to the new unitary board on 1 April.
Bradley remarked: “I am confident that Sir David will provide the strong leadership necessary for the BBC to remain the world’s best broadcaster.
“Sir David will bring a wealth of experience to the role and was the strongest candidate in an extremely competitive and high-calibre field. He has extensive experience as a chairman in both the commercial and not-for-profit sector and has a strong regulatory and business background.”
Clementi, who has no experience in broadcasting, published a report in march calling for the BBC to form a unitary board and hand oversight to media regulator Ofcom.