Silia is a distinctive girls' name in United States, ranking #19178 in 2011 with 5 recorded births. The name reached its all-time peak in 2000 with 7 births ranking #12947. Since 1996, the popularity has decreased by 16.7%. In 2011, approximately 1 in every 351,761 girls born was named Silia. FALLING Recent data shows the name is currently falling.