Lord Browne, the former boss of UK oil firm BP who resigned amid revelations about his personal life, has been appointed a trustee of Tate Gallery.
The Tate exhibits work by artists such as Salvador Dali
Prime Minister Gordon Brown made the appointment, his office said.
The Tate has galleries in London, Liverpool and Cornwall, and is charged with boosting public knowledge, understanding, and appreciation of art.
Lord Browne was one of the UK's most successful businessmen, helping turn BP into the UK's biggest company.
He led the firm between 1995 and 2007, having joined BP in 1966.