Surname Istra-Gaèl (Istra-Gaèl 
) , in the entire world, is an extremely rare cognomen. Much more prevalently, Istra-Gaèl is the forename as well as the last name. Parts of the name also exists independently as a first name Gaèl.
| VARIANT | COUNTRY |
|---|---|
| Istra-Gaèl | Democratic Republic of the Congo |