Gilliland has almost 25 years experience in the food and drink industry and is also a non-executive director for Sutton and East Surrey Water and beer dispense monitoring equipment business Brulines Group.
"We are delighted that Stewart has agreed to join the board of Booker,” said chairman Richard Rose.
“His long experience of working with leading consumer brands and, in particular, his time working in the beverages industry will be invaluable as we continue our journey to focus, drive and broaden our business."
Meanwhile, Unilever has proposed that Sunil Bharti Mittal, founder, chairman & group CEO of Bharti Enterprises, should join its board of directors as a non-executive director.
He will be proposed for election at the consumer goods giant’s agms in London and Rotterdam in May.
Booker stock soars after strong first half (14 October 2010)
Focus On Yoghurts & Pot Desserts (10 April 2010)