Thayer is a distinctive boys' name in United States, ranking #5643 in 2007 with 16 recorded births. The name reached its all-time peak in 2014 with 52 births ranking #2458. Since 1996, the popularity has increased by 23.1%. In 2007, approximately 1 in every 129,702 boys born was named Thayer. FALLING Recent data shows the name is currently falling.