The increase in fraud in electronic transactions such as copyright infringement and trademark counterfeiting is one of the excesses of ecommerce development in addition to the positive impact of legal regulations. brand. The positive and negative impacts of brand rights on e-commerce media need to be addressed carefully to provide legal protection to brand rights owners. The purpose of this research is to analyze trademark rights regulations and Trips in e-commerce systems, as well as a comparison of the legal protection of brand rights in the United States and Australia. The methodology used is a form of normative law with a comparative and case approach using data available thanks to Open Source, both from literature, scientific journals, and recognized media. The results of this research indicate that domestic regulations on brand rights -in Indonesia, the United States, and Australia -as well as trips provide adequate legal protection for brand owners who buy and sell e-commerce goods.