Jack and Emily were the most popular baby names registered in Ireland last year.
Jack has held the top spot since 2007, while Emily has been the most popular name for baby girls since 2011, according to the CSO report.
Emma, Ava, Sophie and Amelia were the top five most popular names for girls in 2015.
The top five boy's names in Ireland last year were Jack, James, Daniel, Conor and Sean.
These have been the top five since 2007, with slight changes to their order. Indeed, all but "Daniel" have been in the top five since 1998.
George was the only first time entry to the top 100 for boys, rising 13 places, from 103rd in 2014 to 90th in 2015.
For the second year in a row Ollie was the boys' name rising most in popularity. It increased 21 places from 87th place in 2014 to 66th place in 2015.
There were three first time entrants to the top 100 for girls: Annabelle, Mila and Rosie.
Mila was also the girls' name rising most in popularity, up 54 places from 142nd place in 2014 to 88th place in 2015.
John and Mary where the names chosen most often by parents 50 years earlier in 1965.