Duke University has a system of Greek life, encompassing both sororities (for women) and fraternities (for men). However, it's important to note that the exact number and specific organizations can change over time (due to chapters becoming inactive or new ones being established). Therefore, for the most up-to-date and complete list, you should consult Duke's official website, specifically the resources related to student organizations or Greek life.
Generally, you will find a mix of national and local organizations represented. Searching online for "Duke University Greek Life" will likely bring you directly to the relevant information on the university's site.