Robert Henry Lawrence Phillipson is Professor Emeritus in the Department of Management, Society and Communication at Copenhagen Business School in Denmark. He is best known for his seminal work on linguistic imperialism and language policy in Europe.

Linguistic imperialism or language imperialism is occasionally defined as "the transfer of a dominant language to other people". This language "transfer" comes about because of imperialism. The transfer is considered to be a sign of power; traditionally military power but also, in the modern world, economic power. Aspects of the dominant culture are usually transferred along with the language. In spatial terms, indigenous languages are employed in the function of official (state) languages in Eurasia, while only non-indigenous imperial (European) languages in the "Rest of the World". In the modern world, linguistic imperialism may also be considered in the context of international development, affecting the standard by which organizations like the International Monetary Fund and the World Bank evaluate the trustworthiness and value of structural adjustment loans by virtue of views that are commonly foregrounded in English-language discourse and not neutral.