In September 2019, a US National Science Foundation (NSF)-supported workshop, “The Enrollment Floodgates Are Open—Best Practices in Materials Science and Engineering Undergraduate Education for Rising Enrollments,” was held at The Pennsylvania State University. In attendance were representatives in leadership positions from universities, a variety of companies, national laboratories, and government organizations. This group (Figure 1) met over three days to discuss the steady and significant rise in undergraduate students graduating with degrees in materials science and engineering (MSE) over the last decade as a result of rising enrollments in many existing MSE programs and the creation of new undergraduate programs. The workshop attendees discussed the impact of these changes on the educational mission and opportunities for employment and the establishment of best practices for the future.