Ronan is an Anglicized form of the Old Irish Rónán, a diminutive of rón, “seal,” and thus conveys the evocative meaning “little seal,” a term that in early Celtic lore denoted both the animal and, metaphorically, a person blessed with maritime protection; historically, the name is anchored by several seventh-century Irish saints, whose missionary activity carried it from monastic scriptoria in Leinster to Breton coastal settlements, embedding it in hagiographic calendars across the Gaelic world. In contemporary Anglo-American usage—pronounced ROH-nuhn—the name has transitioned from niche heritage choice to mainstream contender, its United States trajectory ascending from fewer than ten annual births in the 1950s to 1,370 in 2024, a statistical arc that mirrors the modern appetite for succinct, vowel-rich Celtic names. Cultural associations now extend beyond ecclesiastical history to include the Irish singer-songwriter Rónán Keating, investigative journalist Ronan Farrow, and Marvel’s cosmic antagonist Ronan the Accuser, collectively reinforcing a profile that balances artistic sensitivity with resolute strength.
| Ronan O'Gara is an Irish rugby coach and former fly-half, Ireland's third most-capped and second-highest points scorer, now head coach of La Rochelle in the French Top 14. |
| Ronan Farrow, son of Mia Farrow and Woody Allen, is an American journalist whose New Yorker investigation of Harvey Weinstein earned a shared 2018 Pulitzer for Public Service, and he has also worked with UNICEF and as a government advisor. |
| Ronan Keating is an Irish singer songwriter and media personality who rose to fame with Boyzone in 1993 and later scored a global solo hit with When You Say Nothing At All from Notting Hill. |
| Ronan Maher is an Irish hurler who plays centre-back for Thurles Sarsfields and the Tipperary senior team. |
| Ronan Tynan is an acclaimed Irish tenor and former Paralympian. |
| Ronan & Erwan Bouroullec - Ronan and Erwan Bouroullec are renowned brother designers whose globally recognized work spans furniture, tableware, textiles, ceramics, art objects, and urban projects. |
| Ronan James Dunne is an Irish telecom executive and the current Six Nations Rugby chairman, overseeing commercial and marketing for the tournament. |
| Ronan Lyons is the inaugural Clinical Professor of Public Health at Swansea University Medical School and leads several major population health and data research centers in Wales. |
| Ronan van Zandbeek is a Dutch cyclist who most recently rode for the Dutch amateur team Invicta. |
| Ronan Sweeney is a Gaelic footballer who played for Kildare from 2000 to 2013, winning the 2000 Leinster title, and helped Moorefield claim nine county and two Leinster crowns by 2018. |
| Ronan is a Brazilian forward for K League 2 side Jeonnam Dragons. |
| Ronan Gormley is an Irish field hockey player from Cork who has played for Pembroke Wanderers in Dublin and Crefelder HTC in Germany. |
| Rónan Kelleher - Ronan Kelleher is an Irish rugby hooker for Leinster and Ireland. |
| Rónán Ó Flatharta - Ronan O Flatharta is an Irish Gaelic footballer for An Ghaeltacht and the Kerry senior county team. |