Meaning and name origin
Geoff \ge(o)-ff\ as a boy's name is of Old German origin. Geoff is a variant of Geoffrey: variant of Jeffrey (Old German), probably meaning "peace".
Geoff is not a popular first name for males and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Geoff and its source forms. Popular variation forms ranked in the Top 1000/100 are Jeffrey (#266) and Geoffrey. (2014 statistics).
Geoff is also pronounced similarly to Jeff. This name tends to be more commonly used than Geoff.