Microaggression experienced by LGBTQIA+ (lesbian, gay, bisexual, transgender, queer, intersex, asexual, and having other sexual orientations and gender identities) persons have been exhaustively studied over the last decade. However, there is a dearth of psychological research examining the prevalence, forms, and consequences of LGBTQ microaggression in educational institutions. The current study systematically reviews the existing literature that deals with LGBTQ microaggression on campus. The PRISMA model has been used to systematically identify, screen, and review fifty-nine articles published between 2010 and 2022. The results identified multiple forms of microaggression, i.e. environmental (secondhand witnessing of homophobia and heterosexism on campus), and interpersonal (through peer/faculty/staff interaction). LGBTQ microaggression negatively impacts the academic outcomes (absenteeism, attrition, and productivity) and mental health of the students. Intersectionality accelerates the vulnerability to experiencing microaggression.