Transaction in Own Shares

Diageo PLC
18 September 2007

Diageo plc - Transaction in Own Shares

Diageo plc ('the Company') announces that it has today purchased through Credit
Suisse Securities (Europe) Limited 1,000,000 ordinary shares at a price of
1056.97 pence per share. The purchased shares will be held in treasury for the
purpose of satisfying options grants and share awards made under the Company's
employee share plans.

Following the above purchase, the Company holds total number 271,189,395
ordinary shares as treasury shares. The total number of ordinary shares in issue
(excluding shares held as treasury shares) is 2,622,383,728.




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