M&S Decaf Tea is a signature blend from the British retail institution Marks & Spencer. The company's tea strategy emphasizes ethical sourcing, and since 2006, 100% of its own-brand tea has been Fairtrade certified. While the raw tea leaves are sourced from specialized gardens in major tea-producing regions like Kenya and India (Assam), the product is primarily blended and packaged in the United Kingdom to maintain consistent quality and flavor profiles.

Marks & Spencer was founded in 1884 by Michael Marks and Thomas Spencer in Leeds and has since evolved into a multinational retailer known for its premium food products. In the 2020s, the brand remains under the ultimate ownership of Marks and Spencer Group P.L.C., a public limited company listed on the London Stock Exchange and a constituent of the FTSE 100 index.