Tammy is a distinctive girls' name in United States, ranking #1097 in 2002 with 194 recorded births. The name reached its all-time peak in 1998 with 254 births ranking #841. Since 1996, the popularity has decreased by 13.8%. In 2002, approximately 1 in every 9,262 girls born was named Tammy. RISING Recent data shows the name is currently rising.