Introduction: Successful aging is a positive feeling satisfied with the past and present life. Spiritual health is one of the factors that may be associated with successful aging. The aim of this study was to determine the relationship between successful aging and spiritual health of the elderly in Tehran city.

Methods: This study was a correlational study conducted in 2016. Participants were 112 elderly people in Tehran city, who were selected by multistage cluster sampling. The data were collected by demographic form, Jarel spiritual health and successful aging questionnaire. Data was analyzed using PASW software and through descriptive statistics, independent T test, ANOVA, Pearson correlation coefficient and multiple regression analysis.

Results: The results of this study showed that there was a significant correlation between successful aging and spiritual health. Results of the regression analysis for predicting successful aging based on spiritual health showed that spiritual health in relation to others was able to explain 9% of the changes in successful aging.

Conclusions: Successful aging is associated with spiritual health in relationship with others, and those interventions which are focused on education and spirituality can further enrich aging period.