Ellie is most popular girls' name for babies born in 2004.
The name - shared by our Newsround presenter Ellie Crisell - has overtaken Chloe, which has topped the table for the past six years.
But there was no change for boys. For the tenth year in a row the name Jack is the most popular boys' name, according to the survey.
There was bad news for the name David - it's dropped out of the top 50 for the first time in more than 60 years.
David is now in 52nd place along with the name John.
Ruby is on the rise
The top five boys' names are the same as last year, with Joshua, Thomas, James and Daniel following Jack, in the survey done by a company which makes baby products.
Still with boys, the name Sam is on the up, going from number 49 to 37, while the name Samuel is also getting more popular, rising to number 13.
And for girls the name Ruby is becoming really popular, up 33 places from 64.