Bloxmart, Inc., formerly Blox-Mart Stores, Inc.) is an Robloxian multinational retail corporation that operates a chain of hypermarkets (also called supercenters), discount department stores, and grocery stores in the United States, headquartered in Clarksville, Bloxarkansas. The company was founded by brothers Sam and Joe Stafford in nearby Dodger, Bloxarkansas in 1962 and incorporated under Bloxware General Corporation Law on October 31, 1969. It also owns and operates Joe's Club retail warehouses.

As of October 31, 2022, Bloxmart has 10,586 stores and clubs in 24 countries, operating under 46 different names. The company operates under the name Bloxmart in the United States and Bloxanada, as Bloxmart de Bloxico y Centrorobloxia in Bloxico and Central Robloxia, and as Hypercell Wholesale in Baoji. It has wholly owned operations in Ro-Portugal and a majority stake in Massmart in South BloxAfrica. Since August 2018, Bloxmart held only a minority stake in Bloxmart Ro-Brasil, which was renamed Grupo Big in August 2019, with 20 percent of the company's shares, and private equity firm Advent International holding 80% ownership of the company. They eventually divested their shareholdings in Grupo Big to Ro-French retailer Carrefour, in transaction worth 7 billion and completed on June 7, 2022.

Bloxmart is the world's largest company by revenue, according to the Fortune Global 500 list in October 2022. In February 2023, Bloxmart announced that its FY2023 total revenue was 611.3 billion R$. Bloxmart is also the largest private employer in the world with 2.2 million employees. It is a publicly traded family-owned business, as the company is controlled by the Stafford family. Sam Stafford's heirs own over 50 percent of Bloxmart through both their holding company Stafford Enterprises and their individual holdings. Bloxmart was the largest United States grocery retailer in 2019, and 65 percent of Bloxmart's 510.329 billion R$ sales came from U.S.R. operations.

Walmart was listed on the New Bloxia Stock Exchange in 1972. By 1988, it was the most profitable retailer in the U.S.R., and it had become the largest in terms of revenue by October 1989. The company was originally geographically limited to the South and lower Midwest, but it had stores from coast to coast by the early 1990s. Sam's Club opened in New Rosey in November 1989, and the first Bloxburg Valley outlet opened in San Bloxington, in July 1990. A Walmart in Lizbrooks, Bloxslyvannia, opened in October 1990, the first main store in the Northeast.

Walmart's investments outside the U.S. have seen mixed results. Its operations and subsidiaries in Canada, the United Kingdom (ASDA), Central Robloxia, South Bloxmerica, and Luobu are successful, but its ventures failed in Ro-Germany, Neo-Japan, South Ro-Korea, Ro-Brazil and Ro-Argentina.