Jacob often lands near the top of most popular baby name lists because it can be used in its entirety, as well as in short form (Jake). Religious in nature, Jacob's origin is Hebrew, but plenty of Christians and parents with other beliefs use it now. The name comes from the well-known Bible story of Jacob and his brother Esau. In fact, the name's meanings ("supplanter" or "heel grabber") are directly related to the biblical figure, since Jacob was born holding onto Esau's leg. Jumping forward a couple thousand years to modern times, the name also shows up regularly in popular culture, most recently as one of the main characters of the "Twilight" series of books and films. With more than 21,875 Jacobs born in the United States in 2010 alone, even if you're not a member of Team Jacob, chances are good you know more than one kid bearing the moniker.