Tesco deputy chairman David Reid will become non-executive chairman of the multiple when current chairman John Gardiner retires in March 2004.
Reid joined the board of Tesco in 1985, becoming deputy chairman in 1996. For the last five years he has led Tesco's international development, including the organic growth of its hypermarkets in central Europe and Asia, which now number 150.
Gardiner said: "I am delighted to have worked with the Tesco team over the last six years. I am very pleased David will succeed me.
"His appointment followed a robust, open and soundly based process run by our nominations committee."
He added: "David will provide the necessary continuity for Tesco as it proceeds with the roll-out of its successful strategy."
At the same time as Reid's appointment, deputy group chief executive of British Petroleum Rodney Chase will become deputy chairman and senior non-executive director.