Maciej is a distinctive boys' name in United States, ranking #4955 in 2003 with 16 recorded births. The name reached its all-time peak in 1996 with 18 births ranking #3773. Since 1996, the popularity has decreased by 11.1%. In 2003, approximately 1 in every 123,454 boys born was named Maciej. RISING Recent data shows the name is currently rising.