Objective: To investigate the association between muscle strength and the presence of Urinary Incontinence (UI) in older women. Method: The sample consisted of 236 dwelling older women residing in Porto Alegre/ Brazil. Data collection was performed through the application of the International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF), the Sit-to-Stand Test (STS), and evaluation of handgrip strength using dynamometry. Results: 158 (66%) of the evaluated older women did not have UI, while 78 (33%) did. When comparing the means of the STS, no difference was found between the groups, however, there was a statistically significant difference in the handgrip dynamometry test. It was found that 35.89% of women with dynapenia had UI, compared to 20.88% of those without UI, showing a significant difference in the Chi-square test (X²=0.0132). Conclusion: Older women with UI have lower handgrip strength and an average handgrip strength indicative of dynapenia. The prevalence of UI was 58% higher in dynapenic women.