Deman Family History
Deman Name Meaning
Flemish and Dutch (also De Man in East Flanders and the Netherlands): topographic or habitational name referring to a house named with de man ‘the man’ for example De Geleerde Man (‘The Learned Man’) or De Zwarte Man (‘The Black Man’). This surname is also found in France (Nord). Americanized form of German Demann . English: variant of Diamond . French: variant of Demain .
Source: Dictionary of American Family Names ©2013, Oxford University Press