Surname Иглесиас-Алонсо (Иглесиас-Алонсо 
) , in all the world, is a very rare cognomen. The last name Иглесиас-Алонсо is habitual in Eastern Europe, particularly Russia, where it is a very rare surname. Parts of the name also exists independently as a last name Иглесиас, and a last name Алонсо.
| VARIANT | COUNTRY |
|---|---|
| Иглесиас-Алонсо | Russia |