Last name Deffenbaugh (Deffenbaugh 
) , worldwide, is quite a rare surname. The family name Deffenbaugh is habitual in the United States, where it is a rare surname, Hong Kong, and Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Deffenbaugh | Hong Kong, United Kingdom, Canada, United States |
| gary deffenbaugh American educator and politician, US (b. 1949) |
|
|
| andrew e deffenbaugh researcher (ORCID 0000-0002-8364-6186) |
|
|
| john deffenbaugh American politician, US |
|
|
| amie m deffenbaugh researcher |
|
|
| daniel g. deffenbaugh |
|
|
| mark deffenbaugh American singer, guitarist and multiinstrumentalist, US |
|