This research analysed the impact of globalisation on Nigeria's economic growth and sustainable development. Financial globalisation has paved the opportunity for corporations and governments to get access to competitive sources of foreign funds. Rather than depending on investors in the domestic financial markets corporate entities and governments can take advantage of international investors in the global financial markets for essential money. The research utilised time series data. Data pertaining to economic growth and development were analysed utilising pertinent statistical data analysis methodologies. According to the research completed, it can be stated that financial globalisation influences economic growth and sustainable development in Nigeria. Due to access to external sources of capital, the study concluded that stringent regulation and strong policies on the part of regulators are required to sustain the benefits of financial globalisation.