Hidalgo, a fictional Central American nation in the Doc Savage stories

The Treaty of Guadalupe Hidalgo, which ended the Mexican-American War

Miguel Hidalgo, Mexican leader of the independence movement

Hidalgo County, Texas

Hidalgo (film), starring Viggo Mortensen, named for Frank Hopkins' horse

Hidalgo County, New Mexico

Hidalgo, Texas

Michel Hidalgo, soccer player and manager

Salvador Fidalgo, a Spanish explorer of the Pacific Northwest

Richard Hidalgo, Venezuelan MLB player

Hidalgo, Illinois

The asteroid 944 Hidalgo

Giovanni Hidalgo, musician

Fidalgo Island, an island in Skagit County, Washington, USA

David Hidalgo, musician

Hidalgo (Mexico), a state in central Mexico

Miguel Hidalgo, D.F., a borough of the Mexican Federal District

Rubén Ramírez Hidalgo, Spanish tennis player

Andrew Hidalgo, entrepreneur

Hidalgo, Nuevo León, a city in northern Mexico

Ciudad Hidalgo, two different cities

Hidalgo in Spanish and Fidalgo in Portuguese were traditional titles of persons of nobility or gentry, derived respectively from hijo de algo and filho de algo, "son of some (important family)". Read more at Hidalgo (Spanish nobility).