The Central Statistics Office data shows Sarah retained the top position for girls last year - winning a close race involving Emma, Ella, Katie and Sophie.
More than 1,000 baby boys were called Jack while Sean, Conor, Daniel, and James also made the top five.
Four of the top five boys' names have been in the top five since 1998, with only their order changing from year to year.
Daniel is a new entry to the top five at number four but has been ranked sixth from 2002 to 2006.
There has been more change in girls' names. While Emma and Sarah have been in the top five since 1998, Katie has only been in the top five since 2003, Sophie has been in it since 2006 and Ella is in the top five for the first time.
There were six first time entries to the top 100 for boys: Rhys, Oliver, Jayden, Louis, Lucas and Jacob. Also, Edward returned to the top 100 after a two-year absence and Reece returned after a three-year absence.
There were also six first time entries to the top 100 for girls: Brooke, Millie, Taylor, Muireann, Freya and Maya. Also, Sara returned to the top 100 after a two-year absence and Lara returned after a four-year absence.
Jack was the most popular boys' name in seven of the eight regional authority areas. The exception was the Dublin region where Sean was the most popular.
Sarah was the most popular girls' name in the border and southwest regions. Emma was the most popular in the west and midwest regions. Ella was the most popular in the mideast and southeast regions. Katie was the most popular name in the midland region and Sophie in the Dublin region.
