Background: Water is one of the most valuable environmental factors that play a significant role in human life and health. Domestic fresh water is a basic need for human well-being and economic activities. Objectives: The present study investigated the relationship between religiosity and commitment to the tendency to save water among women in Yazd in 2022. Methods: This descriptive-analytical research was carried out in 2022. The research population included all housewives and working women who visited health centers in Yazd City. Three hundred fifty people were randomly selected. The data were collected using 3 questionnaires on the tendency to save water, religiosity, and commitment, which had been used in a similar study. The data were analyzed using SPSS24 software using Pearson correlation coefficient tests, descriptive statistics, chi-square, and t-test. Results: The mean age of the studied women was 33.05 ± 3.62. The mean scores of the tendency to save water, religiosity, and commitment were 42.18 ± 5.14, 41.67 ± 6.35, and 35.11 ± 6.84, respectively. There was a significant relationship between the tendency to save water score and economic status. The correlation matrix showed a significant positive correlation between the tendency to save water, religiosity, and commitment. Conclusions: Cultural factors such as religiosity and commitment or sense of responsibility, as two different elements that form people's attitudes, affect water consumption behavior. These results are much more important for married women in Yazd City because they have an educational role and are influenced by both religious and citizenship cultures.