Sinead (/ʃɪˈneɪd/) is a feminine given name whose etymological lineage can be traced to the Hiberno-Gaelic rendering of the medieval French Jehanne—itself derived from the Hebrew Yôḥannân, meaning “God is gracious.” Characterized by its initial palato-alveolar fricative and its two-syllable cadence, the name retains a distinctive Celtic resonance even as it has been adopted in Anglo-American contexts. Demographically, Sinead first entered the United States top-thousand register in the late 1970s and has since demonstrated a pattern of modest but persistent usage, with annual occurrences fluctuating between single and double digits and rank positions generally oscillating in the 700–950 range over the past four decades. Morphologically, the terminal suffix -éad functions as a diminutive marker in Irish, while culturally the name is indelibly associated with the Irish vocalist Sinéad O’Connor, whose international prominence in the late twentieth century bolstered its recognition.
| Sinéad O'Connor - Sinead O'Connor was an Irish singer, songwriter, and activist known for her powerful voice and outspoken support for human rights. |
| Sinéad Cusack - Sinead Cusack is an award-winning Irish actress known for her work with the Royal Shakespeare Company and her performance in Our Lady of Sligo. |
| Sinéad Goldrick - Sinead Goldrick is an Irish footballer who has won major titles in both Gaelic football and Australian rules football. |
| Sinéad Aherne - Sinead Aherne is an Irish Gaelic footballer who captained Dublin to four consecutive All-Ireland titles from 2017 to 2020. |
| Sinéad Burke - Sinead Burke is an Irish disability advocate and founder of Tilting the Lens, a consultancy working to make the world more accessible. |