Kop van Noord-Holland
A part of Kop van Noord-Holland is known as West Friesland (or West Frisia). Not to be confused with Friesland, a province in the North of the country. West-Friesland is a distinct area with it's own dialect West-Frisian that is related to the langage of Friesland in the north.
The Hollandic Dutch dialect of West-Frisian is spoken. Not to be confused with Frisian as spoken in the province of Friesland, even though both languages are related to each other.