Fiadh, Emily, Sophie and Ava make up the top five names for girls.
Grace has replaced Emily as the most popular baby name for girls in 2020.
It's the top choice for parents in Laois and Offaly with Westmeath opting for Lucy.
Jack maintained the top spot for boys last year.
It was also the favourite choice in Westmeath and Offaly and Tadhg and James took the top spot in the O Moore County.
The CSO shows after Grace - Fiadh, Emily, Sophie and Ava make up the top five names for girls.
While for boys after Jack - James, Daniel, Noah and Conor make up the top five boys names.
These mothers say picking the right name can be a difficult process:
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