The announcement comes as the plc announced a 3% rise in like-for-like sales for the six months to 31 December to £5.07bn, while profits were up by 6% to £1.65bn.
Diageo predicted full-year profits would show growth of between 4% and 6%, as the Guiness brewer implements a restructuring programme in the next six months to generate savings of £100m by 2010.
”Diageo's performance in this first half again demonstrates the resilience we have from our brand range across categories, price points and geography,” said Walsh.
“The global economic slowdown has affected business in the period and in November and December this impact was more pronounced.
“Current economic trends indicate that consumer confidence will reduce further and the outlook for the second half is more difficult to predict. However, across Diageo we have an experienced management team which combined with the consumer appeal of our brands, the effectiveness of our routes to market and our geographic diversity gives us confidence in our business.”