PHYSOR 2016, the biannual Topical Meeting of the Reactor Physics Division, was held in Sun Valley May 1-5, 2016, and was sponsored and by the Idaho Section of ANS. The meeting was tremendously successful. The meeting was attended by 454 reactor physics professionals and students; 296 from the US along with 185 international participants from 26 countries. Of this total, 122 of the participants were students – more than 25% of all participants. The meeting consisted of 386 technical papers – 345 oral presentations and 41 poster presentations.