Siam is a distinctive boys' name in United States, ranking #10680 in 2003 with 6 recorded births. This places Siam in the bottom 16% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2024 with 12 births ranking #7174. In 2003, approximately 1 in every 329,212 boys born was named Siam. FALLING Recent data shows the name is currently falling.