Cass-Clay or Cass-Clay Creamery is a creamery headquartered in Fargo, North Dakota. It was founded in 1934 in neighboring Moorhead, Minnesota. Its present-day headquarters are at 200 20th St North in Fargo. It manufactures dairy products such as milk, cream, butter, sour cream, cottage cheese, yogurt and ice cream. It also manufactured dips and juices.