Mj is a distinctive boys' name in United States, ranking #8016 in 2019 with 10 recorded births. This places Mj in the bottom 43% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 17 births ranking #5465. In 2019, approximately 1 in every 179,336 boys born was named Mj. RISING Recent data shows the name is currently rising.