Meaning and history
Sinéad is the Irish form of Jeannette, ultimately belonging to the John name family and meaning "Yahweh is gracious." Its modern prominence owes much to Irish singer Sinéad O'Connor. Other bearers include actress Sinéad Cusack and disability activist Sinéad Burke.
In 2025, 11 babies were recorded with the name Sinéad, ranking #8,860 among girls.