Jemma is a moderately popular girls' name in England & Wales, ranking #153 in 1998 with 300 recorded births. The name reached its all-time peak in 1996 with 480 births ranking #101. Since 1996, the popularity has decreased by 37.5%. In 1998, approximately 1 in every 964 girls born was named Jemma. FALLING Recent data shows the name is currently falling.