Samanthajo is a distinctive girls' name in United States, ranking #9958 in 2001 with 10 recorded births. The name reached its all-time peak in 1997 with 13 births ranking #7196. Since 1996, the popularity has increased by 11.1%. In 2001, approximately 1 in every 180,056 girls born was named Samanthajo. FALLING Recent data shows the name is currently falling.