Thayer is a distinctive boys' name in United States, ranking #6259 in 1998 with 10 recorded births. The name reached its all-time peak in 2014 with 52 births ranking #2458. Since 1996, the popularity has decreased by 23.1%. In 1998, approximately 1 in every 191,132 boys born was named Thayer. FALLING Recent data shows the name is currently falling.