Objectives: To investigate the risk of hospitalized fall or hip fracture among older adults using mental health services. Design: Retrospective cohort study. Setting and Participants: Residents of a South London catchment aged >60 years receiving specialist mental health care between 2008 and 2016. Measures: Falls and/or a hip fracture leading to hospitalization were ascertained from linked national records. Incidence rates and incidence rate ratios (IRRs) were age-and gender-standardized to the catchment population. Multivariable survival analyses were applied investigating falls and/or hip fractures as outcomes. Results: In 22,103 older adults, incidence rates were 60.1 per 1000 person-years for hospitalized falls and 13.7 per 1000 person-years for hip fractures, representing standardized IRRs of 2.17 [95% confidence interval (CI) 2.07-2.28] and 4.18 (3.79-4.60), respectively. The IRR for falls was high in those with substance-use disorder [IRR ¼ 6.72 (5.35-8.33)], bipolar disorder [IRR ¼ 3.62 (2.50-5.05)], depression [IRR ¼ 2.28 (2.00-2.59)], and stress-related disorders [IRR ¼ 2.57 (2.10-3.11)]. Hip fractures were increased in all populations (IRR > 2.5), with greatest risk in substance use disorders )], dementia .00)], and delirium [IRR ¼ 4.03 (3.00-5.29)]. Comparing mental disorder subgroups with each other, after the adjustment for 25 potential confounders, patients with dementia and substance use had a significantly increased risk of falls, and patients with dementia also had an increased risk of hip fractures. Conclusion and Implications: Older people using mental health services have more than double the incidence of falls and 4 times the incidence of hip fractures compared to the general population. Although incidences differ between diagnostic subgroups, all groups have a higher incidence than the The authors declare no conflicts of interest.