Although it may start with the last letter of the alphabet, Zachary sports some nicknames that push it to the front of the line: Zach, Zack, and Zak. A Biblical name and a presidential name, Zachary hails from the Greek name Zacharias in the New Testament and the Hebrew name Zechariah. A top 50 contender from 1989 to 2003, Zachary is now in the top 150. Elton John, Elizabeth Vargas, and Cheryl Tiegs are among the celebrity parents with sons named Zachary.