The name Hidalgo is a boy's name of Spanish origin meaning "nobleman". Hidalgo and is often added to lists like Names with Inspirational Meanings and discussed in our forums with posts like "CAF w/ dice, a little chance, name banks etc.".
From the experts:
Hidalgo is the name of a minor planet, and, on Earth, the Spanish word for a nobleman, but we don't see much crossover potential.