Jemma is a moderately popular girls' name in England & Wales, ranking #122 in 1997 with 401 recorded births. The name reached its all-time peak in 1996 with 480 births ranking #101. Since 1996, the popularity has decreased by 16.5%. In 1997, approximately 1 in every 731 girls born was named Jemma. FALLING Recent data shows the name is currently falling.