Mariann is a distinctive girls' name in United States, ranking #9421 in 2022 with 11 recorded births. The name reached its all-time peak in 2000 with 47 births ranking #3002. Since 1996, the popularity has decreased by 31.3%. In 2022, approximately 1 in every 148,978 girls born was named Mariann. FALLING Recent data shows the name is currently falling.