Social security, as a primary mechanism for compensating bodily injuries, plays a crucial role in protecting victims; however, the scope of such protection regarding the types of eligible injuries and the range of beneficiaries varies across legal systems. The lack of clarity in this regard may result in uncertainty concerning the rights of injured persons, inconsistency in practice, and difficulties in analyzing the relationship between social security and other bodily injury compensation mechanisms. Against this background, the present study adopts a comparative approach to examine the scope of compensatory social security support for bodily injury in the legal systems of Iran and England. The aim of the research is to identify the types of compensatory benefits provided and to analyses the legal position of different categories of injured parties within the framework of social security regulations. The methodology is based on comparative analysis of governing rules and authoritative legal sources in both jurisdictions. The findings indicate that, beyond differences in the variety of support mechanisms, a key distinction lies in the manner in which the legal boundaries of bodily injury compensation and the scope of eligible beneficiaries are defined. In particular, the English system provides a clearer delineation of benefits with a compensatory function, whereas in Iranian law this scope has not been defined in a clear and coherent manner. Without addressing welfare structures or financial arrangements, the study emphasizes the need for a clearer articulation of the scope of bodily injury compensation by social security in Iranian law.