Sonja is a distinctive girls' name in United States, ranking #3820 in 2022 with 40 recorded births. The name reached its all-time peak in 1998 with 159 births ranking #1179. Since 1996, the popularity has decreased by 71.6%. In 2022, approximately 1 in every 40,969 girls born was named Sonja. FALLING Recent data shows the name is currently falling.