Disabled students must communicate their condition to the university to access accommodations, but many do not disclose or do so late. We explored identity management and disclosure decisions in a sample of 34 students from a Spanish open university through email interviews. Results show that these students carefully assess disclosing their disability due to the emotional risks involved and that the administrative process poses an obstacle. Students with apparent disabilities (i.e., physical and sensory) emphasize self-sufficiency and normalization of their presence, while students with hidden disabilities (i.e., mental disorders and learning challenges) focus on avoiding stigma and increasing credibility. Online universities should acknowledge the distinct needs derived from the different types of disabilities, provide personalized support, and facilitate disclosure procedures.