Issiac is a distinctive boys' name in United States, ranking #6736 in 1999 with 9 recorded births. This places Issiac in the bottom 42% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 13 births ranking #6236. In 1999, approximately 1 in every 213,343 boys born was named Issiac. RISING Recent data shows the name is currently rising.