This report provides a detailed analysis of the economic effects of Brexit on the United Kingdom, Germany, and Spain. The introduction defines Brexit as the UK's exit from the European Union and highlights the resulting market uncertainty. The report examines the impact on exchange rates, interest rates, and stock prices for the three countries, using data from 2016. In the UK, the pound sterling experienced a sharp decline in exchange rates, interest rates were cut, and stock prices fluctuated. Germany saw the Euro appreciate, interest rates were lowered, and stock prices slightly increased. Spain, using the Euro, experienced similar exchange rate trends, with the Euro appreciating. The analysis concludes by summarizing the varying economic impacts of Brexit across the three nations, highlighting the interconnectedness of the global economy and the specific financial challenges each faced as a result of Brexit.