Meaning and history
From Old Irish Tadg meaning "poet", this name was borne by an 11th-century king of Connacht and by several other kings and chieftains in medieval Ireland, and in Irish mythology it was also the name of the grandfather of Fionn mac Cumhaill.
20062006: 16 births, rank #5,303
2007: 8 births, rank #8,915
2008: 14 births, rank #6,070
2009: 31 births, rank #3,476
2010: 29 births, rank #3,633
20112011: 16 births, rank #5,433
2012: 21 births, rank #4,533
2013: 16 births, rank #5,404
2014: 17 births, rank #5,252
2015: 17 births, rank #5,289
20162016: 29 births, rank #3,681
2017: 26 births, rank #3,993
2018: 17 births, rank #5,320
2019: 26 births, rank #4,003
2020: 35 births, rank #3,202
20212021: 40 births, rank #3,021
2022: 42 births, rank #2,962
2023: 46 births, rank #2,769
2024: 40 births, rank #3,045
20252025: 30 births, rank #3,658
In 2025, 30 babies were recorded with the name Tadhg, ranking #3,658 among boys.