Last name Dagenhart (Dagenhart 
) , in the world, is a rare family name. The cognomen Dagenhart is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dagenhart | New Zealand, Venezuela, United Kingdom, United States |
| william david dagenhart particle physicist at Brandeis, Fermilab |
|