Maciej is a distinctive boys' name in United States, ranking #8879 in 2001 with 7 recorded births. The name reached its all-time peak in 1996 with 18 births ranking #3773. Since 1996, the popularity has decreased by 61.1%. In 2001, approximately 1 in every 277,547 boys born was named Maciej. RISING Recent data shows the name is currently rising.