Con Nichiwa, is an American anime convention held in Tucson, Arizona and organized by Monkey Paw Entertainment. The convention is traditionally held on the last full weekend of March and lasts for 3 days (Fri-Sun). It is currently hosted at the Tucson Convention Center in Tucson, Arizona. Con-Nichiwa is the largest anime convention in Tucson Arizona with attendance reaching 2,209 for the 2016 event.