Wikipedia:
Maas is the name, in English borrowed from the Dutch language, of a river that is also named Meuse (river), in English borrowed from French language. The practical use in English may be influenced by the context at a lower or upper stream location.
Maas is a Dutch and North German surname. It is the modern (after 1804) northern Dutch spelling of the name Maes due to the standardisation of the northern Dutch spelling under Matthijs Siegenbeek.
People
Dick Maas, Dutch film makerHermann Maas, German pastor and opponent of NazismJames Maas, American social psychologist, Professor at Cornell University, and Stephen H. Weiss Presidential FellowJohannes Maas, Dutch racing cyclistKevin Maas (born 1965), American former major league baseball playerMelvin Maas (1898–1964), American Marine aviator and politician from MinnesotaPaulus Johannes Maria Maas (born 1939), Dutch botanist and a specialist in the flora of the neotropicsPeter Maas (1929–2001), American journalist and authorRupert Maas, art gallery owner and expert on the television programme "Antiques Roadshow"Timo Maas, German DJWillard Maas (1906–1971), American experimental filmmaker and poetErnest Maas, (1892–1986), was a silent-era screenwriterFrederica Sagor Maas (1900-2012), playwright
Sources and references