Objectives: The aim of this study was the comparison of different levels of religious attitude on the sense of meaning, loneliness and happiness in the life of elderly persons under cover of social wlfare organisation of urmia city.

Methods & Materials: The study was a descriptive analytical research and sample size of 221 persons (81 women and 140 men) aged over 60 years using a random cluster sampling were selected. The Khodayari`s religious attitude questionnaire, Russell`s loneliness questionnaire, Salehi`s questionnaire for sense of meaning and oxford’s happiness questionnaire were used as instruments in this study.

Results: The results of multivariate analysis of variance and scheffe method of follow-up showed that stronger levels of religious attitudes is associated with happiness and meaning of life in elderly persons (P<0.05). Also, the elderly who have strong religious attitude in comparison of the others feel less alone.

Conclusion: Religious attitude is a preventive factor to reduce the problems of the elderly and on this basis the relevant authorities could strengthen religious beliefs of elderly persons by proper planning and providing their participation in religious activities.