Introduction: The lumbar pain is a set of painful manifestations that reach the lower back and sacroiliac, manifested in both sexes and all age groups, but increases dramatically with age, it is regarded as an important cause of disability, ranging from acute, subacute and chronic pain. Objective: This study aimed to investigate the influence of lumbar pain in the functional capacity of elderly residents in the city of Cajazeiras-PB. Methodology: This is a cross-sectional study, analytical with a quantitative approach, conducted with 43 elderly patients with lumbar pain attended at the elderly pastoral meetings of St John Bosco church in the city of Cajazeiras-PB. It was used as a collection tool a questionnaire with socio demographic data, the visual analogue scale (VAS) and the Roland-Morris disability questionnaire. Data analysis was performed using the computer program SPSS version 20.0, and analyzed using descriptive and inferential statistics. Results: It was observed that most of the elderly were female, widowed, illiterate and predominant age group being 71-82 years old. The pain was classified as intense (39.53%) for most of the sample and through the Roland-Morris was established that all participants showed some degree of disability, and (62.6%) had severe disability.