Mathieu is a distinctive boys' name in United States, ranking #3109 in 2020 with 37 recorded births. The name reached its all-time peak in 2000 with 77 births ranking #1562. Since 1996, the popularity has decreased by 19.6%. In 2020, approximately 1 in every 46,623 boys born was named Mathieu. FALLING Recent data shows the name is currently falling.