IntroductionThis document will highlight the most important cultural differences between Brazil and the United States and what could be the impact of these differences on each other's business activities? Culture is a phenomenon that pervades every corner of the earth and society. The term has different definitions, denoting specifically or vaguely the same thing. For this exercise; Culture is a mutually supporting mixture of beliefs, behavioral patterns, knowledge, and all learned properties possessed by a civilization or society. These are all determined by the acquisition of skills or knowledge on how to perform tasks or symbolic thinking within a particular group of people. There is extensive cultural mixing that occurs due to trading, learning and working which has brought its activities to an international platform. Emigration and migration have also led to greater levels of multiculturalism in the workplace as well as in learning institutions, and people from different backgrounds now interact through studying and working together more than ever. Other interactions influenced by multiculturalism include politics, sports, marriage, and entertainment. In today's world, companies have expanded their regional operations and employees can be located in any corner of the globe, and for this reason it is necessary to be culturally aware. International employee deployments have integrated cultural training sessions into their orientations as a means to help the workforce adapt to different work environments. In recent decades there has been an increased emphasis on taking cultural differences into consideration when addressing international relations in business. Multinational corporations have expanded beyond national nationalizations. synergy in the workplace. The two nations are very close but their cultural differences are so pronounced and very significant in influencing the work environment. Brazil, in particular, offers a diverse and challenging working environment that all expats should be aware of in order to operate smoothly. However, if sufficient preparation and training about the differences in local culture is offered, then working in these environments should be an easy task. Diversity is double-edged, in the sense that if well addressed it can promote synergy, cooperation and ease of working, but on the other hand, if not well managed by management, it can cause conflicts and misunderstandings..