ABSTRACT Objectives: to analyze sexual function and its correlation with sexuality and quality of life in male older adults. Methods: a cross-sectional study, developed with 231 male older adults. Participants completed four instruments to obtain biosociodemographic data, sexual function, sexuality and quality of life. Analyzes were performed using the Mann-Whitney test and Spearman Correlation. Results: sexual function was positively correlated with sexuality in a moderate magnitude and with quality of life in a low magnitude. Male older adults without sexual dysfunction experienced their sexuality better and had a better quality of life. Finally, partner overall satisfaction was the facet of sexual function that had the highest positive correlation with sexuality, while self-confidence had the highest positive correlation with quality of life. Conclusions: we suggest that sexual function should be addressed more frequently in Primary Health Care services, as we found statistically significant correlations with sexuality and quality of life components.