Cognomen Райнхардт (Rheinhardt 
, Райнхардт 
) , in all the world, is a rare last name. The surname Райнхардт is characteristic of Germany, where it is a rare surname, the United States, where it is a very rare surname, and New Zealand. Not in comparison with a country's population, it is commonest in the United States, Germany, and Philippines. Much less frequently, Райнхардт is the forename as well as the last name.