Popular baby names come and go with the times, as you may have discovered when poring over the lists of name ideas for your little one. The Social Security Administration says as of the end of 2009, the yearÕs 10 most popular girlsÕ names were Isabella, Emma, Olivia, Sophia, Ava, Emily, Madison, Abigail, Chloe and Mia. For boys, the top picks were Jacob, Ethan, Michael, Alexander, William, Joshua, Daniel, Jayden, Noah and Anthony.

Source:
http://www.ssa.gov/pressoffice/pr/baby-names2009-pr.htm