The Americas are the lands of the Western hemisphere or New World consisting of the continents of North America and South America with their associated islands and regions. The Americas cover 8.3% of the Earth's total surface area (28.4% of its land area) and contain about 14% of the human population. The term the Americas is a relatively recent alternative to the term America, which is ambiguous as it may refer to either this entire landmass or just the United States of America.

The Americas, also known as America, are the lands of the western hemisphere, composed of numerous entities and regions variably defined by geography, politics, and culture.