Oktoberfest Zinzinnati is an annual weekend festival in the city of Cincinnati, Ohio. Based on the original German Oktoberfest, it is billed as the largest Oktoberfest celebration in the United States. First held in 1976, it attracts an estimated 500,000 visitors every year in late September. It is held along six blocks of Downtown Cincinnati. As of 2016, Oktoberfest is held on 3rd Street to clear room for Cincinnati Streetcar operations.