This study explores the associations between spiritual beliefs and practices, religiosity, and spiritual well-being for Jordanian Arab Muslim university students. A convenience sample of 553 students was recruited from northern Jordan. The findings showed that participants with greater spiritual beliefs and practices and religiosity were more likely to have better spiritual well-being, religious well-being, and existential well-being. Only income had a significant effect on the spiritual well-being and existential well-being. In conclusion, the findings revealed that spirituality and religiosity are important to the lives of young Arab Muslims, which has potential implications for well-being.