Siam is a distinctive boys' name in United States, ranking #12039 in 2011 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 2011, approximately 1 in every 316,498 boys born was named Siam. FALLING Recent data shows the name is currently falling.