Steffani is a distinctive girls' name in United States, ranking #7668 in 2001 with 14 recorded births. The name reached its all-time peak in 1997 with 25 births ranking #4357. Since 1996, the popularity has decreased by 17.6%. In 2001, approximately 1 in every 128,611 girls born was named Steffani. FALLING Recent data shows the name is currently falling.