Last name Ilfrey (Ilfrey 
) , across the world, is a very rare cognomen. The surname Ilfrey is habitual in the United States, where it is an extremely rare surname, and Venezuela. Much less frequently, Ilfrey is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ilfrey | United States, Venezuela |
|
jack m. ilfrey United States Army Air Forces fighter ace (1918-2004), US (b. 1918) |
|