Tammy is a distinctive girls' name in United States, ranking #1108 in 2001 with 192 recorded births. The name reached its all-time peak in 1998 with 254 births ranking #841. Since 1996, the popularity has decreased by 14.7%. In 2001, approximately 1 in every 9,378 girls born was named Tammy. RISING Recent data shows the name is currently rising.