Meaning: Its source is Yitzchak, a Hebrew name meaning "He will laugh."

Nickname For: Isaac, Zachariah and Zachary

Popularity: The name Zack ranked 1135th in popularity for males of all ages in a sample of the 1990 US Census.

Though this name appears on the 1990 U.S. Census lists, it is used by only a small percentage of the general population.