Last name Sandefer (Sandefer 
) , worldwide, is a rare cognomen. The last name Sandefer is characteristic of the United States, where it is a rare surname, Canada, where it is a very rare surname, and Philippines, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sandefer | Canada, Brazil, United States, Philippines |
| jeff sandefer (b. 1960) |
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| ryan h sandefer researcher (ORCID 0000-0003-0550-6652) |
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