Background: The Jebsen Taylor Hand Function Test (JTHFT) is a non-diagnostic assessment scale for measuring hand and upper limb dexterity. It is commonly used worldwide to evaluate conditions such as muscular dystrophy, stroke, spinal cord injury, Parkinson's disease, carpal tunnel syndrome, and rheumatoid arthritis. The purpose of this study is to assess the validity and reliability of the Arabic version of the Jebsen Taylor Hand Function test in Egyptian patients who have undergone flexor tendon repair.   Purpose of Study: This study aimed to determine the reliability and validity of the Arabic translation of the Jebsen Tyler Hand Function Test in Egyptian patients who have undergone flexor tendon restoration repair. Subjects and Methods: The study included hundred patients (males and females) with flexor tendon repair surgeries. They were recruited from Cairo University Educational Hospitals and Outpatient Clinics of the Faculty of Physical Therapy, Cairo University.  Results: The test was given to 100 patients with post-flexor tendon repair. Cronbach's alpha reported a value of 0.945 and 0.924 for both non-dominant and dominant hands respectively. A subgroup of 100 people analyzed in order to determine whether the intra- and inter-raters' reliability. The intraclass correlation coefficients' range was from 0.968 to 0.978 in the dominant and non-dominant hands. Conclusion: The present study supports the usage of the JTHFT's Arabic version as a gauge of hand functionality in post-flexor tendon repair patients. It is a crucial tool for Arabic professionals and can be helpful for research into hand rehabilitation as well as clinical practice to assess improvement following rehabilitation therapies.