Family name Eberardo (Eberhard 
, Eberardo 
) , in the world, is a common last name. The cognomen Eberardo is characteristic of Western Europe, particularly Liechtenstein, where it is quite a common surname, Switzerland, and Austria, where it is quite a rare surname. In absolute terms, it is commonest in Germany, Switzerland, and the United States. More prevalently, Eberardo is the forename as well as the last name.