Jack
Jack meaning: God is gracious.
Jack origin: Hebrew
Jack gender: Male

Jacki
Jacki meaning: Abbreviation of Jacqueline which is the Feminine form of Jacques.
Jacki origin: English
Jacki gender: Female

Jackie
Jackie meaning: Form of Jacqueline. One who supplants.
Jackie origin: Hebrew
Jackie gender: Female

Jackleen
Jackleen meaning: Abbreviation of Jaqueline which is the Feminine form of Jacques.
Jackleen origin: English
Jackleen gender: Female

Jacklynn
Jacklynn meaning: Abbreviation of Jaqueline which is the Feminine form of Jacques.
Jacklynn origin: English
Jacklynn gender: Female

Jackson
Jackson meaning: Son of Jack.
Jackson origin: Hebrew
Jackson gender: Male

Jacky
Jacky meaning: Diminutive of Jacqueline: Supplanter. Feminine form of Jacques (Jacob). Introduced into Britain in the 13th century.
Jacky origin: French
Jacky gender: Female