Niamh is a moderately popular girls' name in England & Wales, ranking #193 in 2024 with 251 recorded births. The name reached its all-time peak in 2000 with 1,204 births ranking #40. Since 1996, the popularity has decreased by 34.1%. In 2024, approximately 1 in every 1,028 girls born was named Niamh. FALLING Recent data shows the name is currently falling.