What does Issac mean?
Issac /is-sac/ as a boys' name. Issac's name origin is Hebrew, and Issac means "laughter". Issac is an alternate form of Isaac (Hebrew). Compare last name Issak.
How popular is Issac?
Issac is a somewhat popular first name for males (#698 out of 1220, Top 57%) and an even more popular last name for both adults and children (#21124 out of 150436, Top 14%). (2000 U.S. Census)
Presented below is the baby name popularity of Issac for boys. Issac reached its peak position of #376 in the U.S. in 2008, and is currently at #553. (2014 Birth Statistics)
Popular related forms of Issac (#553 2 years ago) appearing in the Top 1000 are Isaac (#31 2 years ago), Zack, Zak, Isak, Isaak and Ike. Other variants, like Ikie, are seldom used. Usage of these relations of Issac was widespread among parents during the years 1880-1889 (usage of 0.4041%) and is somewhat lower today (usage 0.2023%, down 49.9%), with the versions Zack, Isaak and Ike becoming less trendy. Isaac has historically been preferred by parents, though Issac has also become popular as well over time. Shown below is an analysis of the usage of Issac and associated names. (2014 Birth Statistics)