Transaction in Own Shares

TO:      Regulatory Information Service                                     
                                                                            
         PR Newswire                                                        
                                                                            
RE:      PARAGRAPH 12.6.4 OF THE LISTING RULES                              

Diageo plc - Transaction in Own Shares

Diageo plc (the "Company") announces that today, it released from treasury
1,688 ordinary shares of 28 101/108 pence each ("Ordinary Shares"), to satisfy
grants made under employee share plans.  The average price at which these
Ordinary Shares were released from treasury was 1080.32 pence per share.

Following this release, the Company holds 247,995,206 Ordinary Shares as
treasury shares and the total number of Ordinary Shares in issue (excluding
shares held as treasury shares) is 2,506,120,779.

John Nicholls

Deputy Company Secretary

17 August 2012