Last name Hiidalgo (Hiidalgo 
) , in the world, is a very rare surname. The family name Hiidalgo is habitual in Latin America and the Caribbean, particularly Colombia, where it is a very rare surname, Ecuador, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Colombia, Ecuador, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Hiidalgo | Colombia, Spain, Venezuela, Mexico, Ecuador |