This essay examines the marketing mix strategies employed by two major supermarket chains in the United Kingdom, Tesco and Sainsbury's. It analyzes their product offerings, pricing models, distribution channels, and promotional campaigns, highlighting key strengths and areas for improvement. The analysis reveals that both companies offer a wide range of products at competitive prices but differ in their approaches to online presence and promotion. The essay concludes by recommending that Sainsbury's strengthen its promotional strategies and invest more in its online business to compete effectively with Tesco.