Mathieu is a distinctive boys' name in United States, ranking #2631 in 2015 with 47 recorded births. This places Mathieu in the top 19% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 77 births ranking #1562. In 2015, approximately 1 in every 40,771 boys born was named Mathieu. FALLING Recent data shows the name is currently falling.