Jemma is a moderately popular girls' name in England & Wales, ranking #177 in 2001 with 239 recorded births. The name reached its all-time peak in 1996 with 480 births ranking #101. Since 1996, the popularity has decreased by 50.2%. In 2001, approximately 1 in every 1,121 girls born was named Jemma. FALLING Recent data shows the name is currently falling.