The largest landowner in the world currently is King Charles III of England. How much land does the Royal Family own? He and the British Royal Family own more than 6,600,000,000 acres of land around the world. They technically own many territories around the globe, amounting to 1/6 of the surface of the planet.

The answer depends on whether you define "ownership" by sovereign territory or legal landholding. By sovereign territory, Russia is the undisputed leader, owning over 17 million square kilometers (roughly 11% of Earth's land). However, in terms of personal or institutional "landholding," the British Royal Family, led by King Charles III, is technically the largest landowner in the world. As the reigning monarch, the King holds legal title to approximately 6.6 billion acres of land across the globe, which represents one-sixth of the planet's surface. This includes the vast crown lands of the United Kingdom, Canada, Australia, and New Zealand. It is important to note that this is "sovereign" ownership rather than private wealth; the land is held "in right of the Crown" and managed for the public benefit, though the King remains the ultimate legal titular owner of these massive international territories in 2026.