Digital currency impacts global economies by facilitating transactions, enabling financial inclusion, and challenging traditional banking systems. Cryptocurrencies, such as Bitcoin and Ethereum, provide fast, decentralized payment methods that can be accessed worldwide. This democratization of finance allows individuals without bank accounts to participate in the economy. Furthermore, digital currencies can enhance cross-border transactions, reducing costs and increasing efficiency. However, they also present regulatory challenges and concerns about market volatility, which governments and institutions must address to adapt to the evolving financial landscape.