Introduction: Mandibular fractures in older adults range from 10.1 to 56%. These fractures often cause long-term disability and deformities, with social and psychological consequences. Health-related quality of life is becoming increasingly relevant in therapeutic decision-making, however, there are few studies that address that of older adults who have suffered FM. Objective: The aim of this article is to assess the quality of life of older adults with mandibular fracture treated at the “General Calixto García” Hospital between 2022 and 2023. Methodological Design: A descriptive prospective study was carried out with 17 patients aged over 60 years of both sexes with a mandibular fracture of traumatic aetiology who attended the Maxillofacial Surgery Service of “General Calixto García” Hospital between 2022 and 2023. Results: The mean age was 73.4 years. The females represented 71.4% of the low quality of life scores. The impairment of mandibular function was severe in 100% of patients with low quality of life. A tendency towards an increase in quality of life scores was observed after mandibular fracture treatment. The physical dimension was the most affected one before treatment. Conclusions: Low quality of life prevailed in patients older than 75 years and it was closely related to females. Patients who received open treatment had better quality of life. The quality of life improved as the impairment of mandibular function decreased.