Background: Given the important effects of loneliness on health and it has not been studied precisely in our country among the spouses of personnel deployed to long-term missions, therefore, the current study was done to investigate loneliness and related factors among spouses of naval personnel.

Materials and methods: In this cross-sectional study with simple random sampling, 120 spouses of personnel deployed to long-term naval missions were selected in one of the regions of the navy in 2015. They were assessed using the short form of the Social-Emotional Loneliness Scale (SELSA-S). Data were analyzed by SPSS software.

Results: The mean and standard deviation of romantic loneliness, family loneliness, social loneliness, and general loneliness were 12.8±7.6, 7.8±4.5, 12.5±4.9, and 32.9±9.8, respectively. Also, it was found significant differences in loneliness scores (general, social, or family) among different age groups, number of children, and work experience of spouse (p<0.05).

Conclusion: The highest value in loneliness is related to romantic loneliness score. Younger women with fewer children are at risk of more loneliness in its all aspects.