The Northern Ireland Statistics and Research Agency published data on baby names registered in 2025. Noah received 170 registrations as the top boys' name. Grace had 127 registrations as the leading girls' name.

Jack ranked second for boys with 150 registrations. James placed third with 135. The boys' top ten also included Charlie with 123, Leo with 115, Oisin with 108, Theo with 106, Luca with 104, and Arthur and Jude with 101 each.

Fiadh took second for girls with 105 registrations. Olivia ranked third with 101. Other top ten girls' names were Isla with 97, Lily with 96, Emily with 94, Annie with 91, Aoife with 85, Meabh with 81, and Freya with 78.

Arthur joined the boys' top ten for the first time since records started in 1997. Leo returned to the boys' top ten. Annie reappeared in the girls' top ten after one previous entry in 2022. Meabh entered the girls' top ten for the first time.

In the boys' top 100, Naoise, Conn, Reggie, and Micheal advanced most from 2024 to 2025. Less common boys' names registered included Ace, Bowie, and Phoenix.

In the girls' top 100, Lainey, Millie, Cassie, and Harper rose most from 2024 to 2025. Less common girls' names included Wynter, Zendaya, and Pixie.

Registrations covered 2,225 distinct girls' names and 1,875 boys' names. Birth records featured 966 previously unused names.