There are an estimated 515 people named Jacek alive worldwide today. That ranks Jacek at #15912 globally, with the highest concentrations in United States.
In the United States, Jacek is held by approximately 515 people, ranking #15912 among first names. That works out to roughly 0 per 100,000 Americans (or 1 in 644,466 U.S. residents).
Historically Jacek is used overwhelmingly as a male name (100.0% male).
Jacek 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.