Jon is a shortened form of the common given name Jonathan, meaning "God

God

God is the English name given to a singular being in theistic and deistic religions who is either the sole deity in monotheism, or a single deity in polytheism....

 has given", or an alternate spelling of John

John (name)

John is a masculine given name in the English language. The name is derived from the Latin Ioannes, Iohannes, which is in turn a form of the Greek , Iōánnēs. This Greek name is a form of the Hebrew name , , which means "God is generous"...

, meaning "God is gracious". In the year of 2008, Jon was the 527th most popular name in the United States; its popularity has declined steadily (sometimes increasing, but not substantially) since its peak in 1968 as #65. Pet form of Jon include: Jonny

Jonny

Jonny is a masculine given name, and pet name, in the English language. In some cases it is a simplified form of Johnny; in other cases it is a pet form of Jon. A variant form of Jonny is Jonnie....

and Jonnie

Jonnie

-People with the name:* Jonnie Barnett , American musician* Jonnie Craig , English photographer* Jonnie Fedel , Swedish football coach* Jonnie Juice , New Zealand professional wrestler...

.