Meaning and name origin
Jessilyn \j(e)-ssil-yn, jess(i)-lyn\ as a girl's name is of Hebrew origin, and the meaning of Jessilyn is "He sees". Jessilyn is a variant of Jessie (Hebrew): pet form of Jessica, also recorded in Scotland from an early date as a pet form of Jean and diminutive of Janet.
Jessilyn is not a popular first name for females 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 girl name Jessilyn and its variant forms. The only popular variation form ranked in the Top 1000/100 is Jessie (#587). (2014 statistics).
Jessilyn is also pronounced similarly to Jessalin, Josilyn, Jossalyn and Josselyn. Other suggested similar baby names are Jeslyn, Jesslyn, Jesslynn and Josslyn. Like Jessilyn, these names are not commonly used.