Bear in mind that shortened versions are commonly used and the pronunciation is different to English.
Gareth Form of Garaint or ‘gwaraidd’ meaning civilised ****
Garth Form of Gareth or ridge *
Gawain Welsh form of Gavin *
Geraint From a latin origin meaning old ****
Gerallt Welsh form of Old German words for Spear and Rule *
Gerwyn Meaning rough and white *
Gethin From the Celtic word Cethin meaning ‘dusky’. Also knight of Owain Glyndwr *****
Glanmor From the words glan (clean) and mor (great) *
Glyn Short form of Glynd^wr *****
Glynd^wr Means vale of water (d^wr). A hero in Welsh history **
Goronwy Was a poet from Anglesey **
Griff From Gruffudd *
Gruffudd From Griphuid – the lords strong grip **
Gruffydd A form of Gruffudd **
Guto A form of Gruffudd **
Gwallter Welsh form of Walter *
Gwaun Means heath in Welsh *
Gwenallt Unknown *
Gwent County in South Wales *
Gwern From the Mabinogi *
Gwili A river in Carmarthenshire *
Gwilym The Welsh form of William ***
Gwion Childhood name of Taliesin *
Gwri The name of Teyrnon’s adopted son in Welsh mythology *
Gwydion A magician from the Mabinogi *****
Gwyn Means white or fair ***
Gwyndaf Was a Celtic saint ***
Gwynfor Means great white **
Gwynlais River in Glamorgan *