Deepfake technology, grounded in generative artificial intelligence algorithms, enables the production of audiovisual content that is synthetically fabricated and virtually indistinguishable from reality, thereby subjecting the intellectual property rights regime, particularly in the domains of copyright and trademark law to unprecedented challenges. On the one hand, by exploiting copyright-protected works and recreating or adapting them, deepfakes may constitute an infringement of creators' exclusive rights. On the other hand, through misleading implication of endorsement, attribution, or affiliation, or by concealing the identity of the provider of goods or services, they may facilitate trademark infringement. This paper identifies instances of infringement in both areas and examines the adequacy of the existing normative frameworks within the Iranian legal system. The research findings indicate that current Iranian legislation, owing to its reliance on traditional concepts and the absence of judicial practice, is incapable of containing the ramifications of deepfakes and faces substantial lacunae in the digital environment. Accordingly, a fundamental revision of the intellectual property rights regime and the design of a comprehensive, flexible, and forward-looking framework, one that simultaneously safeguards the rights of creators and brand owners, against the risks posed by deepfakes, is not merely an option but an undeniable necessity.