Family name Knoetzel (Knoetzel 
) , in all the world, is a very rare cognomen. The cognomen Knoetzel is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Very seldom, Knoetzel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Knoetzel | United States |