City Dairy Company Limited

City Dairy Company Limited was a dairy products firm that was established to deliver high-quality milk in the city of Toronto, Ontario. It was founded by Walter Massey (1864–1901), the president of Massey-Harris and a member of the prominent Massey family. The company was the first Canadian dairy to supply pasteurized milk.

The company was founded after Massey opened his Dentonia Park farm in 1897 and raised a herd of dairy cattle. The milk from these cows was sent to a dairy plant at 487 and 563 Spadina Crescent, later known as the Borden Buildings.

By 1915, City Dairy controlled 40 per cent of the milk market in Toronto. Although Massey had died in 1901, the dairy operation continued until it was sold to Borden in 1930 for $7 million.