Surname Jarnagin (Jarnagin 
) , around the world, is quite a rare family name. The surname Jarnagin is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and New Zealand. Measured by absolute frequency, it is commonest in the United States, Canada, and Venezuela.
| VARIANT | COUNTRY |
|---|---|
| Jarnagin | Canada, Philippines, Venezuela, United States, India |
| thomas jarnagin (b. 1746) |
|
|
| mary witt jarnagin (b. 1753) |
|
|
| richard c. jarnagin American chemist, US (b. 1930) |
|
|
| chuck jarnagin college basketball player (1953–1954) Iowa |
|
|
| william r jarnagin researcher |
|
|
| milton preston jarnagin, jr. Ph.D. Duke University 1949 |
|