The Worcester Memorial Auditorium, also known simply as the Worcester Auditorium, is a multi-purpose arena and auditorium in Worcester, Massachusetts. Built in 1933, as a World War I War memorial in the form of a multi-purpose hall, the Auditorium has a 116-foot-wide proscenium (35 m), and is located in Lincoln Square. Lincoln Square was recently ranked by Preservation Massachusetts as one of the "Most Endangered Historic Resources" in the state because of the three historical buildings in the square that are all empty or underutilized.