Big Y Foods, Inc. (or Big Y) is an American supermarket chain. Big Y has stores in Connecticut and Massachusetts. It operates under the trade names "Big Y World Class Market" or "Big Y Supermarket."
In 1936, a young entrepreneur, Paul D'Amour (not be confused with former Tool bassist of the same name), with aid from his brother Gerald and sisters Ann Marie, Yvette, and Gertrude, purchased the Y Cash Market in the Willimansett section of Chicopee, Massachusetts at an intersection where two roads converged at a "Y". On December 12, 1936, the brothers began Y Cash Market, the forerunner of Big Y. The company is headquartered in Springfield, Massachusetts. Big Y now is run by cousins Charles and Donald D'Amour.