Seymour is a distinctive boys' name in United States, ranking #12078 in 2022 with 6 recorded births. The name reached its all-time peak in 2025 with 11 births ranking #7594. Since 1996, the popularity has increased by 20.0%. In 2022, approximately 1 in every 290,729 boys born was named Seymour. RISING Recent data shows the name is currently rising.