Jack
Jack Russell Terrier dog from the film The Artist.
The name Jack
Jack · Male · English origin · "English name from a medieval diminutive of John, ultimately 'Yahweh is gracious'"
See the full name profile for naming variations, similar names, and other famous bearers of Jack.
Cross-referenced against the Wikipedia entry. Where text is paraphrased from Wikipedia, the original is licensed under CC-BY-SA 3.0; image licenses are noted per image above.