This is a list of submitted surnames in which the usage is Celtic; and the first letter is L.
Submitted names are contributed by users of this website. The accuracy of these name definitions cannot be guaranteed.
LaceManx Shortened form of Manx Mac Guilley Chass (Gaelic Mac Giolla Chais) meaning "son of the curly-haired youth", derived from macc "son", gilla "boy, youth; attendant, servant" and cas "curly, twisted".
LackeyIrish Lackey was originally a name for a horse servant.
LaffeyIrish Reduced anglicisation of Gaelic Ó Laithimh, itself derived from the earlier form Ó Flaithimh, ultimately from flaitheamh meaning "ruler". It could also be a variant of Leahy.
LaheyIrish Lahey and Leahy originate from two different Gaelic surnames. Lahey, Lahy, Lahiff, Lahiffe, Laffey, and Lahive all originate from the Gaelic surname O Laithimh, which itself is a variant of O Flaithimh... [more]
LahiffeIrish (Rare) From Irish Ó Laochdha meaning "descendant of the hero" or "descendant of the heroic", ultimately from laoch "warrior, hero".
LallyIrish (Anglicized) A shortened form of Mullally, an Anglicized form of Ó Maolalaidh. A famous bearer includes James Lally, an Irish landowner and politician from Tuam, County Galway.
LalorIrish Lalor is an Irish surname derived from the Irish Ó Leathlobhair, from leath- “leper; weak, ailing person”
LaveryIrish, Northern Irish From the Gaelic Ó Labhradha, "descendants of Labhradha" (speaker, spokesman, the father of Etru, chief of the Monagh of the Irish over-kingdom of Ulaid); the name of an ancient family originating from Magh Rath (present-day Moira, County Down, Northern Ireland)... [more]
LawlerIrish, Scottish This Irish surname is of Gaelic language origin. The surname derives from the original Gaelic 'O'Leathlobhair' meaning 'descendant of leathlobhair'. Leathlobhair derives from 'Leath' meaning 'Half' and 'Lobhar' meaning 'leper'.... [more]
LawlessEnglish, Scottish, Irish From a nickname for someone who was undisciplined or an outlaw, derived from Middle English laweles "not following the law or discipline".
Le BrasBreton Altered form of Breton Ar Brazh meaning "the great, the imposing" or "the big, the fat", ultimately from Proto-Celtic *brassos "great, violent".
LeckeyScottish, English, Irish Originally Scottish, but also found in England, Northern Ireland and Ireland. Possibly derives from the barony of Leckie (meaning "place of flagstones", from Gaelic leac, "flagstone") in Stirlingshire.
LeducFrench, Breton From the Old French title of rank duc "duke" (from Latin dux "leader" genitive ducis) with the French masculine definite article le used as a nickname for someone who gave himself airs and graces or else as a metonymic occupational name for a servant employed in a ducal household.
LehaneIrish Lehane (Irish: Ó Liatháin) is an uncommon Irish surname, typically from County Cork. Ó Liatháin is more frequently anglicized as Lane or Lyons. The surname is also found in County Donegal where it was also anglicized from the Ulster branch of O'Liathain into Lehane, Lane, Lyons,and Lawn.
LehighGerman, Irish Derived from a Native American word "Lechauwekink", meaning "where there are forks in the stream". Variant of Lechau .
LemassFrench, Irish Meaning uncertain. It may be derived from Old French maistre meaning "master", ultimately from Latin magister (see Masterson). Another theory holds that it comes from Irish Gaelic Laighmheasa, a given name meaning "dispatch"... [more]
LivingstoneScottish, Irish, Jewish Scottish: Habitational name from a place in Lothian, originally named in Middle English as Levingston, from an owner called Levin (Lewin), who appears in charters of David I in the early 12th century.... [more]
LlewysWelsh Original Welsh form of "Lewis" used by the former Royal Family of Wales. Most people with the surname "Lewis" derive from the Royal Family. Very few people still have the surname "Llewys," but it is not unheard of.
LomasEnglish, Scottish, Scottish Gaelic Variant spelling of "Lomax", meaning a steam pool devoted from Lumhalghs, Lancs. Also variant spelling of "Lennox", meaning Elmwood in Gaelic.
LomasneyIrish From Gaelic Ó Lomasna meaning "descendant of Lomasna", a byname from lom "bare" and asna "rib".
LoteyIrish The surname Lotey has Irish and Scottish origins from Ó Labhradha, and German origins from the ancient Germanic name Chloderich, which is made up of hlut meaning "famous" and rik meaning "powerful, rich".
LoughreyIrish Reduced Anglicized form of Gaelic Ó Luachra "descendant of Luachra", a personal name derived from luachair "light". The name is often translated, Rush from a Gaelic homonym, luachair meaning "rush".
Lozac’hBreton From a Breton word meaning “husband” or “patriarch”
LudlowEnglish, Irish From the name of a town in Shropshire derived from the Old English river Hlude (from hlud "loud"), which is now called the river Teme, and hlaw "mound, small hill".