Abstract—This research paper offers an in-depth investigation of cross-border mergers and acquisitions (M&A) and foreign direct investment (FDI) in Bangladesh, underscoring their effects on the economy, challenges and opportunities, case scenarios of successful scenarios, and recommendations for policymakers, investors, and organizations. The study examined how cross-border Mergers and acquisitions and Foreign Direct Investment impact the Bangladeshi economy in terms of employment, technology transfer, and economic growth. It highlights the motivations behind these activities, comprising resource-seeking, strategic asset-seeking, market-seeking, efficiency-seeking, and knowledge-seeking. The study explores different forms of cross-border mergers & acquisitions, such as vertical, horizontal, and conglomerate mergers, and discusses their impact. It identifies the benefits of cross-border mergers & acquisitions and Foreign Direct Investment, such as augmented market share, access to new technologies, cost efficiencies, and increased competitiveness, while recognizing the risks involved, entailing integration issues, cultural differences, and regulatory obstacles. The study underscores the importance of examining cross-border M&A and FDI in Bangladesh, bearing in mind the nation’s growing interest from foreign investors, and its capability for economic growth, sustainable development, and industrial advancement. The findings contribute to the current knowledge base on cross-border mergers & acquisitions and FDI, providing valuable insights for decision-making and policy formulation to maximize the benefits of these investments in Bangladesh.