Boy Names That Start With J

Ranked in the United Kingdom in 2025, with birth trends and peak years.

J is the 5th most common first initial for baby boys in the United Kingdom, with 24 J names in the top 300 for 2025, led by Jude (#13), also the fastest-growing, up 92% since 2020. Jesse (#53) and Jasper (#67) reached their highest ranks on record in 2025.