Loneliness and social isolation are linked to negative health outcomes for older adults, and a hospital admission presents an opportunity to assess their implications for this group. A retrospective chart audit was conducted over a three-month period in 2024 on ninety-five adults aged ≥65 who presented to the emergency department of an Australian metropolitan hospital. Admission data and social workers’ case notes were searched for indicators of loneliness or social isolation. Risk factors such as living alone, death of a partner, and frailty were identified in over a third of patients. Of particular concern were the older people in this group who were admitted after an unwitnessed fall and were not found for a length of time. Minimal documentation on some patients’ social situation highlighted the need for a more in-depth assessment of how social factors interact with frailty. Hospital social workers are uniquely positioned to assess for social isolation and loneliness in older patients and identify barriers to social connectivity and support. Increasing their understanding of risk factors for social isolation and loneliness will enable them to more effectively assess and respond to the needs of older people at risk of poor health outcomes.