Names I to Y

Learn about Welsh girls first names starting with the letters I to Y.

In this list, you’ll discover the meaning and popularity of these girls’ names including Lili, Mai, Mabli, Nia, and Seren.

NameDescriptionPopularity
IfannaThe female version of the name Ifan*
InaDaughter of Ceredig*
IolaFeminine form of Iolo*
IonaFrom Ionawr welsh word for January*
IrwenThe female version of Irwyn*
LeriDiminutive form of Meleri, Eleri and Teleri*
LiliWelsh version of Lily**
LiliwenMeans white lily*
LlianDiminutive form of Gwenllian**
LlinosLinnet in Welsh**
LlionPet form of Gwenllian*
LonaDiminutive form of Moelona*
LowriWelsh form of Laura****
LunedFrom Eluned**
LynVariant for of Lynn**
LynnFrom the Welsh word for lake, llyn**
LynneVariant for of Lynn**



RhonwenMeans white ring*
RhoswenRhoswen means white rose*
MabliThe Welsh name for Mable**
MadlenWelsh girl’s name for Magdalene*
MaiWelsh for the month of May***
MairWelsh girl’s name for Mary***
MairwenCombination of Mair and wen (fair)*
MaliWelsh form of Molly derivative of Mary**
Mallt Matilda in Welsh*
ManodMountain in West Wales*
ManonThis name means Queen*
MargedWelsh form of Margaret**
MargiadNorth Wales form of the name Marged*
MariWelsh form of Mary***
MatiFrom Marged*
MediThe Welsh name for September**
MeganFrom Margaret*****
MeinirMeaning slender and tall***
MeinwenMeaning “slender and fair”*
MeleriSt David’s grandmother**
MenPet form of Menna*
MereridMeans pearl*
MonaPlace name in Anglesey*
MyfanwyDerived from annwyl, ‘beloved’. Popular Welsh song.***
MyfiShort for the Welsh girl’s name Myfanwy**
NerysDerived from Generys***
NestWelsh form of Agnes*
NestaWelsh form of Agnes**
NiaThe Welsh form of the Irish name of Niamh. Meaning Brightness.*****
NonMother of St David**
OlwenFrom King Arthur’s mythical stories**
OlwennaA variant of Welsh girl’s name Olwen*
OwenaThe female version of Owen*
Prydwen *
RhiainMeans maiden*
RhianThe Welsh word ‘rhiain’ meaning maiden****
RhiannonFrom the Mabinogion***
RhonaA variant of the Welsh girl’s name Olwen*
SaraFrom the girl’s name Sarah****
SerenThe Welsh name for a star*****
S^hanThe Welsh form of Jane*
Si^anThe Welsh form of Jane****
SianiVariant of Sian**
SionedFemale form of Si^on**
SiriolMeans content**
SiwanThe Welsh name for Joan**
TanwenMeaning white (gwen) fire (t^an) in Welsh*
TagwenThe female version of Tegwyn*
TeganFrom the Welsh word ‘teg’ means fair. Also Welsh word for toy***
TeleriVariant on Eleri**
TesniMeans “warmth from the sun”*
TirionThis means gentle and happy*
TonwenOrigins unknown*

Names A-D, E-H

Share our site with your friends and family if you found it useful.