One in 59 children are diagnosed on the autism spectrum and approximately 728,000 autistic youth in the United States turned 18 years old in 2018. Although larger numbers of autistic students are entering postsecondary institutions, fewer than 40% completed their program. The literature suggests that academic challenges are often not the culprit for low persistence rates. Rather, autistic students in higher education are not getting the social engagement supports they need. This qualitative research study highlights five autistic student experiences to better understand the ways autistic students experience social engagement at four-year higher education institutions. Their documented experiences include recommendations on the best ways non-academic departments can support autistic students to enhance social engagement. The study promotes a neurodiversity lens to lead institutional change. Semi-structured interviews were conducted with five participants; additional data collected included follow-up email correspondence and photo submissions with written captions. The findings revealed three commonalities amongst participants in how they experienced social engagement. These include common motivators for engagement, feelings of anxiety, and making meaning of their social engagement through the benefits and challenges of campus programming related to group size. Furthermore, participants recommended that postsecondary institutions improve institutionally supported peer mentor programs, opportunities to build genuine friendships, and increase awareness, acceptance, and representation of the neurodiverse community on campus. Future program policy and research directions are proposed for higher education practitioners to enhance social engagement experiences for autistic students. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]