Steffani is a distinctive girls' name in United States, ranking #9084 in 2000 with 11 recorded births. The name reached its all-time peak in 1997 with 25 births ranking #4357. Since 1996, the popularity has decreased by 35.3%. In 2000, approximately 1 in every 165,088 girls born was named Steffani. FALLING Recent data shows the name is currently falling.