Objective: The fear of falling (FOF) is defined as low perceived self-efficacy at avoiding falls during the nonhazardous activities of daily life. The FOF can lead to negative consequences including the physical change, and it might decrease the quality of life of the elderly. The aim of study was to assess the prevalence of FOF and identify the associated factors among Thai elderly patients. Methods: A cross-sectional study was performed. A total of 101 participants 60 years or older were recruited from October to November 2017. The data obtained through questionnaires, face-to-face interviews, and gait and balance tests that were measured by the researchers. The structured questionnaire included demographic data, history of falls, the Thai geriatric depression scale (TGDS), the Falls Efficacy Scale-International (FES-I), and the Thai mental state examination (TMSE). The balance and gait tests were conducted using the timed up and go (TUG) test and the Berg balance scale. Results: The prevalence of FOF was 70.3%. The logistic regression analysis showed a significant association between FOF and female gender (odds ratio [OR], 4.07; 95% confidence interval [CI], 1.63-10.46), whereas factors were not associated with FOF included age, living status, education, number of underlying disease, comorbidities, number of drugs used, history of fall, consequences of falls, visual acuity, TGDS, TMSE, TUG, and Berg balance test. In the multivariate model, the factors associated with the FOF were gender (OR, 4.28; 95% CI, 1.58-12.14) and hypertension (OR, 3.46; 95% CI, 1.11-11.72). Conclusion: The prevalence of FOF was high among Thai elderly patients. The present findings may help health care providers identify individuals who have FOF. These people could benefit from interventions, which focus on gender differences and hypertension aimed at reducing the FOF.