Sears, Roebuck and Co. ( SEERZ), commonly known as Sears, is an American chain of department stores founded in 1892 by Richard Warren Sears and Alvah Curtis Roebuck and reincorporated in 1906 by Richard Sears and Julius Rosenwald, with what began as a mail ordering catalog company migrating to opening retail locations in 1925, the first in Chicago. In 2005, the company was bought by the management of the American big box discount chain Kmart, which upon completion of the merger, formed Sears Holdings. Through the 1980s, Sears was the largest retailer in the United States. In 2018, it was the 31st-largest. After several years of declining sales, Sears's parent company filed for Chapter 11 bankruptcy on October 15, 2018. It announced on January 16, 2019, that it had won its bankruptcy auction, and that a reduced number of 425 stores would remain open, including 223 Sears stores.

Sears was based in the Sears Tower in Chicago from 1973 until 1995, and is currently headquartered in Hoffman Estates, Illinois. Sears announced in 2021 that it would be selling its Hoffman Estates headquarters complex. On December 12, 2022, Sears Authorized Hometown Stores, LLC, and affiliated debtor Sears Hometown, Inc., filed for Chapter 11 bankruptcy protection, and on the 26th announced the liquidation of the 115 largely owner-operated Hometown stores.

As of February 9, 2023, there were 17 full-line Sears stores, Sears Appliance & Mattress, and Sears Home & Life stores remaining.