Kaydie is a distinctive girls' name in United States, ranking #16621 in 2001 with 5 recorded births. This places Kaydie in the bottom 8% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 14 births ranking #8740. In 2001, approximately 1 in every 360,112 girls born was named Kaydie. FALLING Recent data shows the name is currently falling.