Spencer is a moderately popular boys' name in United States, ranking #360 in 2025 with 908 recorded births. The name reached its all-time peak in 1998 with 4,619 births ranking #84. Since 1996, the popularity has decreased by 74.8%. In 2025, approximately 1 in every 1,881 boys born was named Spencer. STABLE Recent data shows the name is currently stable.