Transaction in Own Shares

Diageo PLC
21 July 2006


Diageo plc announces that it has today purchased through Credit Suisse
Securities (Europe) Limited 500,000 ordinary shares at a price of 900.23 pence
per share. The purchased shares will all be held as treasury shares.

Following the above purchase, Diageo plc holds 259,953,051 ordinary shares as
treasury shares. The total number of ordinary shares in issue (excluding shares
held as treasury shares) is 2,791,027,194.


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