Mariann is a distinctive girls' name in United States, ranking #7892 in 2023 with 14 recorded births. The name reached its all-time peak in 2000 with 47 births ranking #3002. Since 1996, the popularity has decreased by 12.5%. In 2023, approximately 1 in every 114,475 girls born was named Mariann. FALLING Recent data shows the name is currently falling.