- Loa
- Loader
- Lob
- Loba
- Lobach
- Lobao
- Lobato
- Lobatto
- Lobbe
- Lobbes
- Lobbestael
- Lobbezoo
- Lobbrecht
- Lobe
- Lobel
- Lobelle
- Lobenstein
- Lobers
- Lobert
- Lobianco
- Lobik
- Lobina
- Lobler
- Lobner
- Lobo
- Lobos
- Lobosco
- Lobry
- Lobstein
- Locatelli
- Locci
- Loch
- Lochan
- Loche
- Locher
- Lochmann
- Lochner
- Lochocki
- Locht
- Lochte
- Lochtenberg
- Lock
- Locke
- Locker
- Lockhart
- Lockhorst
- Lockley
- Lockwood
- Lockyear
- Lockyer
- Locorotondo
- Locquet
- Loda
- Lodden
- Lodder
- Lodders
- Loddo
- Lode
- Lodemann
- Lodenstein
- Loder
- Lodewick
- Lodewijk
- Lodge
- Lodin
- Loe
- Loeb
- Loeber
- Loedeman
- Loef
- Loeff
- Loeffel
- Loeffen
- Loeffler
- Loefs
- Loehr
- Loek
- Loeman
- Loen
- Loenen
- Loenhout
- Loeper
- Loer
- Loeschke
- Loet
- Loete
- Loeve
- Loeven
- Loevestijn
- Loew
- Loewenstein
- Loewenthal
- Loewer
- Loeza
- Lof
- Loff
- Loffler
- Loffredo
- Lofstrom
- Lofthouse
- Lofti
- Loftus
- Log
- Logan
- Loganathan
- Logeman
- Logemann
- Logen
- Loggen
- Logghe
- Loggia
- Logie
- Loginova
- Logman
- Logo
- Logterman
- Loguercio
- Loh
- Lohani
- Lohaus
- Lohbeck
- Lohe
- Lohman
- Lohmann
- Lohmeyer
- Lohn
- Lohne
- Lohnen
- Lohner
- Lohr
- Lohrengel
- Lohrer
- Lohrman
- Lohrmann
- Lohse
- Lohuis
- Loiacono
- Lois
- Lojan
- Lok
- Loke
- Loker
- Lokken
- Lokker
- Lokman
- Loktev
- Loku
- Lokum
- Lokwa
- Lol
- Lolis
- Lolkus
- Lolling
- Lom
- Loman
- Lomartire
- Lomas
- Lomax
- Lombaard
- Lombaerts
- Lombard
- Lombardi
- Lombardini
- Lombardo
- Lombert
- Lome
- Lomellini
- Lomi
- Lommel
- Lommen
- Lommers
- Lomo
- Lon
- Lonardo
- Loncar
- Loncaric
- Loncin
- Loncke
- Loncq
- Londeman
- Londero
- Londo
- London
- Loner
- Lonergan
- Lones
- Loneux
- Loney
- Long
- Longar
- Longarini
- Longbottom
- Longdon
- Longhi
- Longhitano
- Longhurst
- Longley
- Longman
- Longo
- Longuet
- Longworth
- Lonigro
- Lonis
- Lonn
- Lonne
- Lonsdale
- Lont
- Lonte
- Lony
- Loo
- Loobeek
- Loock
- Loof
- Loohuis
- Looi
- Looij
- Looijaard
- Looise
- Look
- Looman
- Loomans
- Loon
- Loop
- Looper
- Loopuyt
- Loor
- Looren
- Loos
- Loose
- Loosemore
- Loosen
- Looser
- Loot
- Looten
- Lootens
- Loots
- Lootsma
- Looyen
- Looze
- Lopata
- Lopatka
- Lopera
- Lopes
- Lopez
- Lopp
- Lopriore
- Lops
- Lopz
- Loquet
- Lor
- Lorai
- Loran
- Lorand
- Lorang
- Lorant
- Lorch
- Lord
- Lore
- Lorenc
- Lorens
- Lorent
- Lorente
- Lorenz
- Lorenzen
- Lorenzi
- Lorenzini
- Lorenzo
- Loretan
- Lorette
- Lori
- Loriaux
- Lorie
- Lorimer
- Lorincz
- Lorinser
- Loris
- Lorius
- Lorraine
- Lorrie
- Lors
- Lorsch
- Lortie
- Lortz
- Lorusso
- Los
- Losa
- Losacco
- Losada
- Loscalzo
- Losch
- Loscher
- Loseke
- Losen
- Loser
- Losi
- Losing
- Losito
- Losper
- Loss
- Losse
- Losser
- Lotfi
- Lotfy
- Loth
- Lotichius
- Lotman
- Lots
- Lotsy
- Lott
- Lotte
- Lotten
- Lotter
- Lottering
- Lotterman
- Lotti
- Lottin
- Lottman
- Lottmann
- Loturco
- Lotz
- Lotze
- Lou
- Louali
- Louati
- Loubert
- Loubser
- Louchahi
- Louche
- Louden
- Loudon
- Louer
- Lougheed
- Loughlin
- Loughton
- Louis
- Louisa
- Louise
- Louissen
- Louisville
- Louiza
- Loukes
- Louki
- Loukil
- Loukili
- Loulidi
- Loup
- Loupias
- Lourdes
- Loureiro
- Lourens
- Lous
- Lousberg
- Louter
- Loutfi
- Louvet
- Louw
- Louwagie
- Louwe
- Louwen
- Louwens
- Louwerman
- Louwers
- Lov
- Lova
- Lovas
- Lovasz
- Lovdahl
- Love
- Lovecchio
- Lovekin
- Lovely
- Loven
- Lovenich
- Lover
- Lovera
- Loverbos
- Lovering
- Lovett
- Lovey
- Lovin
- Lovisa
- Lovrenovic
- Lovric
- Low
- Lowder
- Lowe
- Lowell
- Lowenstein
- Lowenthal
- Lowes
- Lowet
- Lowie
- Lowies
- Lowings
- Lowis
- Lownds
- Lowry
- Lowson
- Loxley
- Loy
- Loyd
- Loyen
- Loyens
- Loyer
- Loyo
- Loza
- Lozano
- Lozar
- Loze
- Lozovskaia