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Globally, แจ็ค (Jacks , Chaek , แจ็ค ) is quite a rare dominantly boy's, but uncommonly female first name. The given name แจ็ค is habitual in Sub-Saharan Africa, particularly Zambia, where it is a rare masculine name, Cameroon, and the Democratic Republic of the Congo. Measured by absolute frequency, the name is most common in Brazil, the Democratic Republic of the Congo, and Indonesia. More prevalently, แจ็ค is the last name as well as the forename.
แจ็ค is also a name for the fictitious and mythical characters: .