There are an estimated 474 people named Gillermo alive worldwide today. That ranks Gillermo at #16739 globally, with the highest concentrations in United States.
In the United States, Gillermo is held by approximately 474 people, ranking #16739 among first names. That works out to roughly 0 per 100,000 Americans (or 1 in 700,211 U.S. residents).
Historically Gillermo is used overwhelmingly as a male name (100.0% male).
Gillermo appears in birth records going back to 1880. Use the chart below to see how its popularity has changed across decades, and the surname section to find common pairings.