Greene King is a large pub retailer and brewer. It is based in Bury St Edmunds, Suffolk, England. The company owns pubs, restaurants and hotels. It was listed on the London Stock Exchange until it was acquired by CK Assets in October 2019

The Greene King brewery in Bury St Edmunds produces beers branded in the names of breweries now closed, including Morland (Old Speckled Hen), Ruddles, Hardys & Hanson and Tolly Cobbold. The Belhaven Brewery in Dunbar continues to operate in Scotland.

The group operates 3,100 pubs, restaurants and hotels:

Its retail division is split between its destination pubs and restaurants (with brands including Hungry Horse, Loch Fyne, Taylor Walker and Metropolitan Pub Company) and its local pubs. Its strategy is to open further retail outlets.
Its pub partners division has leased, tenanted and franchised pubs. Its strategy is to reduce the number of these outlets