According to USA Today:
“Twilight is spawning more than just sequels. The film seems to be inspiring new parents.
According to the Social Security Administration, Isabella (the full name of Kristen Stewart’s Bella character) replaced Emma as the most popular baby name for girls in 2009. Among the boys, Jacob (the werewolf played by Taylor Lautner) retained its 11-year-run at the top of boys list.”