Samanthajo is a distinctive girls' name in United States, ranking #11174 in 1999 with 8 recorded births. The name reached its all-time peak in 1997 with 13 births ranking #7196. Since 1996, the popularity has decreased by 11.1%. In 1999, approximately 1 in every 221,723 girls born was named Samanthajo. FALLING Recent data shows the name is currently falling.