Except in Pennsylvania, USA.
A large percentage of the early settlers west of Philadelphia were German Mennonites (a variant of which were the Amish that are still there today) and other 'dissenting' religious groups that found a friendlier home there than in other colonies like Virginia (Church of England) or Massachusettes (Puritans). They were collectively known as the Pennsylvania Germans, or Pennsylvania Deutsch (or Deitsch, another Germanic word like Dutch or Deutsch), which English speakers promptly changed to Pennsylvania Dutch. So, at least in York and Lancaster Counties of Pennsylvania, Dutch, Deutsch and Deitsch are all the same people speaking the same language - although most of the Amish speak a Germanic language related more closely to Alsatian or Swiss German than anything spoken in Germany