Dorothy Jacobs Bellanca (August 10, 1894 – August 16, 1946) was an American labor activist who particularly represented women workers in the garment industry. She moved to the United states and started her first job as a hand buttonhole sewer, and later started organizing groups of her own. She was a strong leader and this led her to being a successful fulltime female organizer. She was leader and an activist that worked for many different causes.