Sinead is the Irish form of Jane or Janet, ultimately from Hebrew Yochanan meaning God is gracious.
Sinéad is the Irish Gaelic form of Janet and Jane, which in turn derive from the Old French Jehanne and ultimately from the Hebrew Yochanan, meaning "God is gracious" or "Yahweh has shown favor." The name entered Ireland through medieval Norman influence, was absorbed into the Gaelic phonological system, and took on the distinctive Irish form with its broad vowels and slender consonants. In Irish, Sinéad is pronounced roughly "shih-NAYD," and the fada (accent) over the é is essential to both pronunciation and spelling.
The name has been borne by notable Irish women across history, but internationally it is most associated with Sinéad O'Connor (1966–2023), the extraordinarily gifted and fiercely principled Irish singer-songwriter whose voice was widely considered one of the great vocal instruments of the twentieth century. Her 1990 recording of Prince's "Nothing Compares 2 U" became one of the most emotionally devastating performances in pop history. O'Connor's life was marked by profound spirituality, fierce political conviction, and public vulnerability, and her name became synonymous with Irish artistic intensity and moral courage.
Beyond its most famous bearer, Sinéad remains a beloved and widely used name in Ireland and among the Irish diaspora, carrying a strong sense of cultural identity. It is one of those names that announces a heritage proudly — its spelling and pronunciation immediately signal Irish roots — and for that reason it has remained relatively protected from the anglicizing trends that have altered many Gaelic names abroad. To name a daughter Sinéad is, in many families, an act of cultural inheritance.