Diaz is a Spanish surname that originated from the given name Diego, meaning “supplanter” or “one who replaces”. It is a common surname in Spanish-speaking countries and has spread to other parts of the world. Notable people with this surname include Spanish explorer Juan Diaz de Solis, Mexican president Porfirio Diaz, and American actress Cameron Diaz. The Diaz surname has also been the subject of various cultural references, such as the song “Maria” by Santana featuring the vocals of The Product G&B.