Fonterra Co-operative Group Limited is a New Zealand multinational publicly traded dairy co-operative owned by New Zealand farmers. The company is responsible for approximately 30% of the world's dairy exports and with revenue exceeding NZ $22 billion, making it New Zealand's largest company. It is the sixth-largest dairy company in the world as of 2022, as well as the largest in the Southern Hemisphere.

A dairy is a place where milk is stored and where butter, cheese and other dairy products are made, or a place where those products are sold. It may be a room, a building or a larger establishment. In the United States, the word may also describe a dairy farm or the part of a mixed farm dedicated to milk for human consumption, whether from cows, buffaloes, goats, yaks, sheep, horses or camels.