Muus

Short form of Bartholomeus (rarely found written as Bartholomuus, which is probably a corruption rather than a true variant).

This name is quite regional, as it appears to be specific to the Zaanstreek ("Zaan region") in the Dutch province of North Holland, where the dialect Zaans is spoken. The patronymic surname Muus is also most prevalent there. Outside of this region, people have historically used the short form Meus and its variants.

Speakers of certain other Dutch dialects might be reminded of mice with this name. For example: in Achterhoeks, which is spoken in the Dutch province of Gelderland, muusken means "little mouse".