As of March 2026 Diageo has a market cap of โฌ38.94 Billion. This makes Diageo the world's 532th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Mar 10th, 2026 the market cap of Diageo was reported to be: