"Variant of Jocelyn"
The name Josselyn is commonly a female name from the "English" origin.
Josselyn is a spelling variant of Jocelyn, an established English given name. The double s form is the same name as Jocelyn rather than a separate name with its own root or meaning.
Jocelyn means "Light Hearted".
The pronunciation of Josselyn is JOSS-uh-lin.