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 187
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 1,002.73 pence per share.

Following this release, the Company holds 250,006,411 Ordinary Shares as
treasury shares and the total number of Ordinary Shares in issue (excluding
shares held as treasury shares) is 2,503,994,684.

J Nicholls

Deputy Company Secretary

17 August 2011