Background: Hoarding behaviors are now a widespread issue among aged people and have a profound effect on several aspects of their lives, such as interpersonal relationships. However, the relationship between hoarding behaviors and interpersonal relationships is insufficiently studied and poorly represented in research. Objective: to assess the relationship between late-life hoarding behaviors and interpersonal relationships. Design: The study followed a descriptive-correctional research design. Participants: A representative sample of 200 randomly recruited older adults Setting: Al Haya and Al-Amal clubs in Alexandria, Egypt. Measurements: A Sociodemographic and Clinical Data Sheet, The Saving Inventory-Revised (SI-R), and The Functional Idiographic Assessment Template-Questionnaire-Short Form (FIAT-Q-SF). Results: A statistically significant relationship was found between older adults' hoarding behaviors and their interpersonal relationships (t = 9.396 and P = 0.000). Conclusion: Most of the older adults exhibited moderate to high levels of hoarding behaviors, and almost all of them had the same levels of interpersonal relationship problems. Evidence of an association between hoarding behaviors and interpersonal relationship problems is found. Recommendation: Provide face-to-face or online videos or telemental health applications with psychoeducational programs for the elderly, family members, relatives, neighbors, and friends about hoarding behaviors and how they affect their interpersonal relationships.