Surname Борхардт (Borchardt 
, Борхардт 
) , around the globe, is a common cognomen. The cognomen Борхардт is characteristic of Germany, where it is quite a rare surname, Luxembourg, and Brazil. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Brazil. Very seldom, Борхардт is the forename as well as the last name.