Rehab is a name of Arabic origin, derived from the word rabab, meaning nurse or caregiver. It is a feminine given name that has been used in various cultures, including ancient Arabia and modern times. In Arabic, the name Rehab is composed of two elements: rabab meaning nurse or caregiver, and -ib meaning daughter or sister. Historically, the name Rehab was popularized by the biblical figure of Rehab, a daughter of Abraham. In modern times, the name Rehab has gained popularity as a unique and exotic-sounding choice for girls.