Karrenbauer means "farmer who comes from the farm "karen"
in reply to a message by Andy ;—)
My father belongs to this family and he searched a lot in the last years in regard to his name. Karrenbauer is a family name common only in a small region of germany (Saarland)The name did not come from a profession but from the name of a farm near by Püttlingen. The farm's name was "Karen" and it is still known as a field name ("Kar" is a geographic term that means "cirque"). "Bauer" means "Farmer".
So the meaning of the name is just the farmer from the farm "Karen".
So the meaning of the name is just the farmer from the farm "Karen".