Family name レイユ (Reille 
, レイユ 
) , worldwide, is a rare cognomen. The family name レイユ is habitual in France, where it is a rare surname, Japan, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in France, Japan, and the United States. More prevalently, レイユ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Reille | Brazil, United Kingdom, United States, Democratic Republic of the Congo, France |
| レイユ | Japan |