Irish Girl Names O to Z

Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2024. Oonagh means “lamb.”

Orla in Irish is Orlaith, meaning “golden princess.” No. 189 for girls in Ireland in 2025, with 23 baby girls.

No. 325 for girls in Ireland in 2025, with 12 baby girls. Orlaith means “golden princess.”

Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2021. Radha means “vision.”

Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2022. Regan means “the king's child.”

No. 80 for girls in Ireland in 2025, with 61 baby girls. Ríadh is a modern Irish girl’s name with no settled meaning.

Riona in Irish is Rionach, meaning “queenly.” No. 213 for girls in Ireland in 2025, with 20 baby girls.

Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2023. Rionach means “queenly.”

No. 103 for girls in Ireland in 2025, with 46 baby girls. Roise means “rose.”

No. 29 for girls in Ireland in 2025, with 135 baby girls. Roisin means “little rose.”

Rosaleen in Irish is Roisin, meaning “little rose.” Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2022.

Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2006. Ryanne is a modern feminine form of Ryan, traditionally explained as “little king,” though the meaning is uncertain.

No. 32 for girls in Ireland in 2025, with 129 baby girls. Sadhbh means “sweet.”

No. 17 for girls in Ireland in 2025, with 176 baby girls. Saoirse means “freedom, liberty.”

No. 885 for girls in Ireland in 2025, with 3 baby girls. Shauna means “God is gracious.”

Shavon in Irish is Siobhan, meaning “God is gracious.” Rare in Ireland: fewer than three baby girls a year get the name.

Sheena in Irish is Sheenagh. Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2018.

Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2024. Sheenagh is a spelling of Sheena, from the Gaelic Síne, a form of Jane.

Shevaun in Irish is Siobhan, meaning “God is gracious.” Not in Ireland's 2025 tables (fewer than three babies); last recorded in 2003.

No. 352 for girls in Ireland in 2025, with 11 baby girls. Sibeal means “God is my oath.”

No. 608 for girls in Ireland in 2025, with 5 baby girls. Síle is the Irish form of Cecilia.

No. 718 for girls in Ireland in 2025, with 4 baby girls. Sinead means “God is gracious.”

No. 483 for girls in Ireland in 2025, with 7 baby girls. Siobhan means “God is gracious.”

No. 110 for girls in Ireland in 2025, with 42 baby girls. Siofra means “elf, sprite.”

No. 127 for girls in Ireland in 2025, with 37 baby girls. Siomha means “good peace.”

No. 273 for girls in Ireland in 2025, with 15 baby girls. Sorcha means “bright, radiant, light.”

No. 718 for girls in Ireland in 2025, with 4 baby girls. Teagan is a spelling of the Welsh name Tegan, “darling,” that also matches a rare Irish surname.

Rare in Ireland: fewer than three baby girls a year get the name. Ultana means “woman of Ulster.”

Rare in Ireland: fewer than three baby girls a year get the name. Yseult is the Irish heroine of the love story of Tristan and Isolde.