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 it sold 267,540 ordinary shares of 28
101/108 pence each in the Company ("Ordinary Shares") from treasury on 12
November 2009 to Credit Suisse Securities (Europe) Limited for cash, at a price
of £10.16 per share.

Following the above sale, the Company holds 251,708,117 ordinary shares as
treasury shares. The total number of ordinary shares in issue (excluding shares
held as treasury shares) is 2,502,210,992.

12 November 2009