real party in interest ruleglossary / REAL-PARTY-IN-INTEREST RULE real-party-in-interest rule. The principle that the person entitled by law to enforce a substantive right should be the one under whose name the action is prosecuted. Fed. R. Civ. P. 17(a). 词条贡献者 法律翻译Max,毕业于一所培养最顶级翻译人才的语言学院,擅长翻译有关电信和互联网领域的法律文件。