Guinness is an Irish dry stout that was founded by Arthur Guinness in 1759 in Dublin, Ireland. The recipe for Guinness has remained largely unchanged over the years, and is a closely guarded secret.

Diageo acquired the brand in 1997, and has since expanded the Guinness portfolio to include a variety of different beer styles and flavors. Guinness is now sold in over 120 countries around the world and is one of the most recognizable beer brands globally.