This case study provides an in-depth industry analysis of Tesco, a British multinational grocery and general merchandise retailer, using Porter's Five Forces framework. The analysis evaluates the threat of new entrants, threat of substitutes, bargaining power of buyers, bargaining power of suppliers, and competitive rivalry within the UK supermarket industry. It highlights that the threat of new entrants and bargaining power of suppliers are low for Tesco, while the threat of substitutes and competitive rivalry are moderate. The study also identifies Tesco's main competitors as Sainsbury’s, ASDA, and Morrison's, emphasizing the intense competition and price wars affecting the company's profit margins. By applying Porter's Five Forces, the analysis aims to identify Tesco's strengths and weaknesses, aiding in strategic decision-making and competitive positioning within the market.