--- 
- gu
- guaba
- guadagna
- guadagni
- guadagnino
- guadagno
- guadagnoli
- guadagnolo
- guadalajara
- guadalupe
- guadamuz
- guadarama
- guadarrama
- guadeloupe
- guaderrama
- guadian
- guadiana
- guadron
- guagenti
- guagliano
- guaglianone
- guagliardo
- guajardo
- gual
- gualandi
- gualano
- gualberto
- gualco
- gualdoni
- guallpa
- gualpa
- gualtier
- gualtieri
- guaman
- guan
- guana
- guanajuato
- guanche
- guanci
- guandique
- guanga
- guanio
- guanlao
- guante
- guanzon
- guapo
- guara
- guaraldi
- guarasci
- guarascio
- guard
- guarda
- guardado
- guardalabene
- guardarrama
- guarderas
- guardi
- guardia
- guardian
- guardiani
- guardiano
- guardino
- guardiola
- guardipee
- guardo
- guare
- guareno
- guarente
- guarez
- guariglia
- guariglio
- guarin
- guarini
- guarino
- guarisco
- guarna
- guarnaccia
- guarnera
- guarnere
- guarneri
- guarnero
- guarneros
- guarniere
- guarnieri
- guarno
- guarracino
- guarrera
- guarriello
- guasch
- guasco
- guasp
- guastaferro
- guastavino
- guastella
- guasto
- guatemala
- guay
- guba
- gubala
- gubbels
- gubbins
- guber
- guberman
- gubernat
- gubernath
- gubernick
- gubert
- gubin
- gubitosi
- gubitz
- gubler
- gubrud
- gubser
- gucciardi
- gucciardo
- guccione
- guck
- guckenberger
- gucker
- guckert
- guckes
- guckian
- guckin
- gucman
- gucwa
- guda
- gudaitis
- gudas
- gudat
- gudde
- gude
- gudel
- gudeman
- guden
- gudenau
- gudenkauf
- guder
- guderian
- guderjahn
- gudex
- gudgel
- gudgell
- gudgeon
- gudger
- gudiel
- gudim
- gudinas
- gudino
- gudis
- gudknecht
- gudmundsen
- gudmundson
- gudmundsson
- gudmunson
- gudorf
- gudroe
- gudvangen
- gudz
- gue
- guebara
- guebert
- guecho
- gueco
- guedea
- guedel
- guedes
- guedesse
- guedjian
- guedry
- gueho
- gueits
- guel
- guelda
- guelde
- gueldner
- guelespe
- guelff
- gueli
- guelich
- guelig
- guelker
- guell
- guella
- guelpa
- guelzow
- guemmer
- guempel
- guenard
- guenette
- guengerich
- guenin
- gueningsman
- guenison
- guenot
- guenter
- guentert
- guenther
- guenthner
- guenthur
- guentner
- guentzel
- guenzel
- guenzler
- gueorguiev
- guera
- guerard
- guerber
- guerci
- guercia
- guercio
- guereca
- guerena
- guereque
- guerera
- guerero
- guererri
- guererro
- gueretta
- guerette
- guerin
- gueringer
- guerini
- guerino
- guerinot
- guernsey
- guerra
- guerrant
- guerrazzi
- guerre
- guerreiro
- guerreo
- guerrera
- guerrero
- guerrettaz
- guerrette
- guerri
- guerrido
- guerrier
- guerriere
- guerrieri
- guerriero
- guerrin
- guerrini
- guerro
- guerrouxo
- guerry
- guers
- guertin
- guertler
- guerue
- guerzon
- guese
- guesman
- guess
- guessford
- guest
- gueta
- guetersloh
- gueth
- guethle
- guethlein
- guetierrez
- guetschow
- guetta
- guetter
- guetterman
- guettler
- guetzke
- guetzkow
- guetzlaff
- guevana
- guevara
- guevarez
- guevarra
- guevera
- guevin
- guevremont
- gueye
- guffanti
- guffee
- guffey
- guffie
- guffin
- guffy
- gugala
- guge
- gugel
- gugenheim
- guger
- gugerty
- guggemos
- guggenberger
- guggenbiller
- guggenheim
- guggenheimer
- guggenmos
- gugger
- guggino
- guggisberg
- gugin
- gugino
- gugler
- guglielmelli
- guglielmetti
- guglielmi
- guglielmina
- guglielmini
- guglielmino
- guglielmo
- guglietta
- gugliotta
- gugliotti
- gugliuzza
- guha
- guhde
- guhl
- guhlke
- guhr
- gui
- guia
- guiab
- guialdo
- guiang
- guiao
- guiberson
- guibert
- guiberteau
- guibord
- guice
- guichard
- guichardo
- guichet
- guico
- guida
- guidaboni
- guidara
- guidarelli
- guidas
- guide
- guiden
- guider
- guidera
- guidetti
- guidi
- guidice
- guidici
- guidinger
- guidish
- guido
- guidon
- guidone
- guidos
- guidotti
- guidrey
- guidroz
- guidry
- guiducci
- guieb
- guiel
- guier
- guiette
- guifarro
- guiffre
- guiffrida
- guiga
- guigar
- guiggey
- guignard
- guiher
- guijarro
- guijosa
- guikema
- guilamo
- guilarte
- guilbault
- guilbe
- guilbeau
- guilbeault
- guilbeaux
- guilbert
- guilboard
- guild
- guilday
- guilder
- guildford
- guildner
- guilds
- guile
- guiler
- guiles
- guiley
- guilfoil
- guilfoos
- guilford
- guilfoy
- guilfoyle
- guilherme
- guiliand
- guilianelli
- guiliani
- guiliano
- guilin
- guilinger
- guilkey
- guill
- guillama
- guillan
- guillard
- guillary
- guillaume
- guille
- guillebeau
- guillemette
- guillemin
- guillen
- guillerault
- guillereault
- guillermo
- guillet
- guillette
- guilliam
- guilliams
- guilliot
- guillory
- guillot
- guillote
- guillotte
- guillou
- guillozet
- guilmain
- guilmet
- guilmette
- guilstorf
- guiltner
- guimaraes
- guimares
- guimbellot
- guimond
- guimont
- guin
- guina
- guinan
- guinane
- guinard
- guinasso
- guindi
- guindon
- guinea
- guined
- guinee
- guiney
- guinle
- guinn
- guinness
- guinnip
- guins
- guinta
- guintanilla
- guinter
- guinther
- guinto
- guintu
- guinup
- guinyard
- guio
- guion
- guions
- guiot
- guiracocha
- guirado
- guiragossian
- guirand
- guire
- guirgis
- guirguis
- guirola
- guiry
- guisasola
- guisbert
- guise
- guiseppe
- guiser
- guishard
- guisinger
- guiski
- guist
- guiste
- guisti
- guisto
- guitano
- guitar
- guitard
- guite
- guiteau
- guiter
- guiterez
- guiterrez
- guith
- guitian
- guitierez
- guitierrez
- guiton
- guitreau
- guitron
- guittar
- guittard
- guittennez
- guitterez
- guity
- guiza
- guizar
- guizzetti
- gujral
- gukasyan
- gukeisen
- gul
- gula
- gulan
- gularte
- gulas
- gulash
- gulati
- gulbin
- gulbis
- gulbraa
- gulbrandsen
- gulbrandson
- gulbransen
- gulbranson
- gulbronson
- gulch
- gulczynski
- guld
- guldan
- gulde
- guldemond
- gulden
- guldi
- guldin
- guldner
- guled
- guler
- guley
- gulezian
- guli
- gulian
- guliano
- gulich
- gulick
- gulik
- gulikers
- gulini
- gulino
- gulinson
- gulisano
- gulish
- gulizia
- gulizio
- gulke
- gulker
- gulko
- gull
- gulla
- gullace
- gullage
- gulland
- gullapalli
- gullatt
- gullatte
- gullberg
- gulledge
- gullekson
- gullen
- guller
- gullet
- gullett
- gullette
- gulley
- gulli
- gullick
- gullicksen
- gullickson
- gullifer
- gulliford
- gulliksen
- gullikson
- gulling
- gullion
- gulliver
- gullixson
- gullo
- gullotta
- gullotti
- gullotto
- gullung
- gully
- gulnac
- gulnick
- gulotta
- gulsby
- gulseth
- gulston
- gulsvig
- gulvas
- gulya
- gulyas
- gum
- guma
- gumaer
- guman
- gumataotao
- gumb
- gumban
- gumbel
- gumber
- gumbert
- gumbiner
- gumble
- gumbrecht
- gumbs
- gumby
- gumfory
- gumienny
- gumieny
- gumina
- guminski
- gumke
- gumkowski
- gumlaw
- gumm
- gummel
- gummelt
- gummer
- gummere
- gummersall
- gummersheimer
- gummerson
- gummert
- gummo
- gummow
- gump
- gumpel
- gumpert
- gumpher
- gumphrey
- gumpper
- gumprecht
- gums
- gumtow
- gumucio
- gumz
- gun
- gunagan
- gunasekera
- gunawan
- gunawardena
- gunby
- gunckel
- gund
- gunda
- gundacker
- gundaker
- gundel
- gundelach
- gundelfinger
- gunden
- gunder
- gunderman
- gundermann
- gundersen
- gunderson
- gundert
- gundlach
- gundling
- gundrum
- gundry
- gundy
- guner
- gung
- gungor
- gunhammer
- gunhus
- gunia
- gunion
- gunkel
- gunkelman
- gunkle
- gunlock
- gunn
- gunnarson
- gunnarsson
- gunnell
- gunnells
- gunnels
- gunner
- gunnerson
- gunneson
- gunness
- gunnet
- gunnett
- gunnin
- gunning
- gunnink
- gunnip
- gunnison
- gunnoe
- gunns
- guns
- gunsallus
- gunsalus
- gunsch
- gunsell
- gunselman
- gunsolley
- gunsolus
- gunson
- gunst
- gunstream
- gunter
- gunterman
- guntert
- guntharp
- gunther
- gunthner
- gunthorpe
- gunthrop
- guntle
- guntner
- gunto
- gunton
- guntrum
- gunty
- guntz
- gunville
- gunyan
- gunyon
- gunzalez
- gunzel
- gunzelman
- gunzenhauser
- guo
- guoan
- guppy
- gupta
- gupte
- guptill
- gupton
- gur
- gura
- gurak
- gural
- guralnick
- guralnik
- guralski
- guran
- guray
- gurba
- gurchiek
- gurciullo
- gurd
- gurda
- gurdak
- gurden
- gurdian
- gurdon
- gurecki
- gureczny
- gurevich
- gurevitz
- gurewitz
- gurfinkel
- gurga
- gurganious
- gurganus
- gurgel
- gurgone
- gurgul
- gurian
- gurich
- gurick
- guridi
- guriel
- gurin
- guritz
- gurk
- gurka
- gurke
- gurkin
- gurley
- gurman
- gurnari
- gurne
- gurnee
- gurner
- gurnett
- gurney
- gurnick
- gurnsey
- guro
- gurovich
- gurr
- gurra
- gurrad
- gurrera
- gurreri
- gurrero
- gurrieri
- gurrola
- gurrusquieta
- gurry
- gurske
- gurski
- gursky
- gursslin
- gurtin
- gurtler
- gurtner
- gurtowski
- gurule
- gurung
- gurvich
- gurvine
- gurvitz
- gurwell
- gurwitz
- gurzynski
- gus
- gusa
- gusciora
- guscott
- guse
- gusek
- guseman
- guseva
- gusewelle
- gush
- gushard
- gushee
- gushi
- gushiken
- gushlaw
- gushue
- gushwa
- gusich
- gusick
- guske
- guski
- gusky
- gusler
- gusman
- gusmano
- gusmar
- guss
- gusse
- gussert
- gussin
- gussler
- gussman
- gussow
- gust
- gusta
- gustad
- gustaf
- gustafson
- gustafsson
- gustaitis
- gustas
- gustason
- gustave
- gustaveson
- gustavsen
- gustavson
- gustavsson
- gustavus
- guster
- gustilo
- gustin
- gustina
- gustine
- gustis
- gustison
- gustitus
- gustke
- gustkey
- gustman
- gustofson
- guston
- gustovich
- gustus
- gustwiller
- gusty
- guszak
- gut
- gutberlet
- gutbrod
- gutch
- gutcher
- gutches
- gutchess
- gute
- gutekunst
- gutelius
- gutenberg
- gutenberger
- gutenson
- guter
- guterez
- guterman
- gutermuth
- guterres
- guterrez
- guterriez
- gutfreund
- gutgesell
- gutgsell
- guth
- guthals
- guthart
- guthary
- gutheil
- gutherie
- guthery
- guthier
- guthman
- guthmann
- guthmiller
- guthorn
- guthrey
- guthridge
- guthrie
- guthro
- guthy
- gutic
- gutiennez
- gutieres
- gutierez
- gutierre
- gutierrec
- gutierres
- gutierrex
- gutierrez
- gutierriz
- gutierrz
- gutin
- guting
- gutirez
- gutirrez
- gutjahr
- gutke
- gutkin
- gutknecht
- gutkowski
- gutleber
- gutman
- gutmann
- gutnik
- gutoski
- gutowski
- gutowsky
- gutrerrez
- gutreuter
- gutrick
- gutridge
- gutsch
- gutsche
- gutschenritter
- gutscher
- gutschmidt
- gutschow
- gutshall
- gutstein
- gutt
- gutta
- guttadauro
- guttenberg
- guttentag
- gutter
- gutteridge
- gutterman
- gutterrez
- gutterson
- guttery
- guttierez
- guttierrez
- guttilla
- gutting
- guttirez
- guttman
- guttmann
- guttormsen
- guttormson
- guttridge
- guttry
- guttuso
- gutwein
- gutz
- gutzeit
- gutzke
- gutzler
- gutzman
- gutzmann
- gutzmer
- gutzwiller
- guven
- guy
- guyan
- guyant
- guydon
- guye
- guyer
- guyet
- guyett
- guyette
- guyll
- guymon
- guyn
- guynes
- guynn
- guynup
- guyon
- guyot
- guyott
- guyotte
- guyre
- guys
- guyse
- guyton
- guz
- guza
- guzak
- guzalak
- guzan
- guzek
- guzel
- guzewicz
- guzi
- guziak
- guzick
- guziczek
- guziec
- guziewicz
- guzik
- guzikowski
- guzinski
- guzior
- guzma
- guzman
- guzmdn
- guzon
- guzowski
- guzy
- guzzardi
- guzzardo
- guzzetta
- guzzetti
- guzzi
- guzzino
- guzzio
- guzzo
- guzzone