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.

Name	Description	Popularity
Ifanna	The female version of the name Ifan	*
Ina	Daughter of Ceredig	*
Iola	Feminine form of Iolo	*
Iona	From Ionawr welsh word for January	*
Irwen	The female version of Irwyn	*
Leri	Diminutive form of Meleri, Eleri and Teleri	*
Lili	Welsh version of Lily	**
Liliwen	Means white lily	*
Llian	Diminutive form of Gwenllian	**
Llinos	Linnet in Welsh	**
Llion	Pet form of Gwenllian	*
Lona	Diminutive form of Moelona	*
Lowri	Welsh form of Laura	****
Luned	From Eluned	**
Lyn	Variant for of Lynn	**
Lynn	From the Welsh word for lake, llyn	**
Lynne	Variant for of Lynn	**

Rhonwen	Means white ring	*
Rhoswen	Rhoswen means white rose	*
Mabli	The Welsh name for Mable	**
Madlen	Welsh girl’s name for Magdalene	*
Mai	Welsh for the month of May	***
Mair	Welsh girl’s name for Mary	***
Mairwen	Combination of Mair and wen (fair)	*
Mali	Welsh form of Molly derivative of Mary	**
Mallt	Matilda in Welsh	*
Manod	Mountain in West Wales	*
Manon	This name means Queen	*
Marged	Welsh form of Margaret	**
Margiad	North Wales form of the name Marged	*
Mari	Welsh form of Mary	***
Mati	From Marged	*
Medi	The Welsh name for September	**
Megan	From Margaret	*****
Meinir	Meaning slender and tall	***
Meinwen	Meaning “slender and fair”	*
Meleri	St David’s grandmother	**
Men	Pet form of Menna	*
Mererid	Means pearl	*
Mona	Place name in Anglesey	*
Myfanwy	Derived from annwyl, ‘beloved’. Popular Welsh song.	***
Myfi	Short for the Welsh girl’s name Myfanwy	**
Nerys	Derived from Generys	***
Nest	Welsh form of Agnes	*
Nesta	Welsh form of Agnes	**
Nia	The Welsh form of the Irish name of Niamh. Meaning Brightness.	*****
Non	Mother of St David	**
Olwen	From King Arthur’s mythical stories	**
Olwenna	A variant of Welsh girl’s name Olwen	*
Owena	The female version of Owen	*
Prydwen		*
Rhiain	Means maiden	*
Rhian	The Welsh word ‘rhiain’ meaning maiden	****
Rhiannon	From the Mabinogion	***
Rhona	A variant of the Welsh girl’s name Olwen	*
Sara	From the girl’s name Sarah	****
Seren	The Welsh name for a star	*****
S^han	The Welsh form of Jane	*
Si^an	The Welsh form of Jane	****
Siani	Variant of Sian	**
Sioned	Female form of Si^on	**
Siriol	Means content	**
Siwan	The Welsh name for Joan	**
Tanwen	Meaning white (gwen) fire (t^an) in Welsh	*
Tagwen	The female version of Tegwyn	*
Tegan	From the Welsh word ‘teg’ means fair. Also Welsh word for toy	***
Teleri	Variant on Eleri	**
Tesni	Means “warmth from the sun”	*
Tirion	This means gentle and happy	*
Tonwen	Origins unknown	*

Names A-D, E-H

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