What does Jack mean?
Jack started as a medieval nickname for John + has become a powerhouse name in its own right — friendly, classic + impossible to mishear.
Origin
Religious / cultural tradition
Christian
Variations
Jack · Jak
Nicknames
Jackie · Jacko
Sibling name ideas
More boy names like Jack
Meanings + cultural notes are educational summaries reflecting common scholarly + linguistic interpretations. Spellings, meanings + pronunciations can vary by region + family tradition.
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