Cognomen הארדן (Harden 
, הארדן 
) , in all the world, is a common surname. The last name הארדן is characteristic of the United States, where it is quite a rare surname, New Zealand, and Australia. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Australia. Very seldom, הארדן is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Harden | Canada, United Kingdom, United States, Germany, Australia |
| הארדן | Israel |