Since the cheese is authentic Parmigiano Reggiano, it must come from Italy, as it is protected by DOP rules. With this, we can then determine the brand behind Kirkland's Parmigiano Reggiano is ...

Customers and reviewers agree that the Kirkland Signature Parmigiano Reggiano cheese is a top-notch product. America's Test Kitchen gave it a thumbs-up for taste and value.