Gabby 
Gabe - Gabriel
Gabriela - Gabriella
- Gaby
Gaddy 
Gadget 
Gadzook 
Gafferwafferdoffer 
Gage - Gaļa
- Galatia
- Galena
- Gallahad
- Galooli
- Gambit
- Gamma
- Gandolf
- Gangsta
- Gangster
- Gangway
- Ganondorf {Ganon}
- Gaper
- Garbo
- Garcia
- Gardner
- Gareth
- Garfunkel
- Gargamel
- Garik
- Garland
- Garnet
- Garret
- Garret The Ferret
- Garrick
- Garrison
- Gary
- Gator
- Gatsby
- Gaz
- Gazelle
- Gazoo
- Gazork
- Geezer
- Geisha
- Gelford
- Gemi
- Gemini
- Gemma
- Genesis
- Genevieve
- Geno
- Gentle
- Geordie
- George
- Georgette
- Georgia
- Georgie
- Gerald
- Geronimo
- Gerret
- Gerry
- Gert
- Gertie
- Gertrude
- Ghost
- Gia Marie
- Giancarlo
- Gianni
- Gib
- Gibson
- Giddy
- Gideon
- Gidget
- Giggles
- Gigi
- Gilbert
- Gilda
- Gilda Snuffledooks
- Giles
- Gillian
- Gilligan
- Gilmoure
- Gimbers {Gimbley}
- Gimbit
- Gimbley
- Gimlet
- Gimley
- Gimli
- Gimp Biscuit
- Gin
- Gin E
- Gina
- Ginger
- Ginger Lee
- Ginko
- Ginnie
- Giovani
- Giovanni
- Gipi
- Gir
- Girly Girl
- Gisele
- Giselle
- Gismo
- Gitmo
- Gizmo
- Gizzy
- Glacier
- Gladys
- Glamourpuss
- Glen
- Glitter
- Gloria
- Gnome
- Gobble
- Gobi
- Gobo
- Godfather
- Godffrey
- Godfrey
- Godiva
- Gohan
- Gojira
- Goku
- Goldie
- Goldy
- Golgi
- Goliath
- Gollum
- Gomer
- Gonk
- Gonzales
- Gonzo
- Goo
- Goober
- Gooch
- Goodie
- Goofy
- Googly Bear
- Goomba
- Goose
- Goosey
- Goosie
- Gorbi
- Gordie
- Gordito
- Gordo
- Gordon
- Gorgeous
- Gorn
- Gorok
- Gossimer
- Gotcha
- Gottie
- Gozer
- Grace
- Graceyn
- Gracie
- Gracie Mae
- Graeme
- GrandePiede
- Grasu
- Gravity
- Gravy
- Gray
- Greco
- Gregory
- Gremlin
- Greta
- Gretchen
- Griffen
- Griffindor {Griff}
- Grim
- Grimsby
- Gringo
- Grissoul
- Grizz
- Grizzle
- Grizzly
- Grizzly Bear {Grizzly}
- Gromit
- Groucho
- Grover
- Grumpy
- Grunt
- Guapo
- Gucci
- Guido
- Guinevere
- Guinifur
- Guinness {McGuinn}
- Guiseppe
- Gumbo
- Gundi
- Gundy
- Gunnar
- Gunter
- Guppy
- Gurdy
- Gurr-Baby
- Guru
- Gus
- Gus Ferrot
- Gus Gus
- Gusher
- Gussy
- Gustav
- Guster
- Gusto
- Gutsey
- Guy
- Gweeto
- Gwen
- Gwin
- Gwydion
- Gypsie
- Gypsy
- Gyro
- Hades
- Haggis {Haggi}
- Hagri
- Hagrid
- Haiku
- Hailey
- Hailstorm
- Haku
- Hala
- Halcyon
- Haley
- Halie
- Halle
- Hamish
- Hammy
- Hank
- Hanna
- Hannah
- Hannibal
- Happy
- Happy Crappy {Crappy}
- Happy Sam
- Hapsiainen
- Hardy
- Harley
- Harmony
- Harold
- Harper
- Harpo
- Harrah Belle
- Harrison
- Harry
- Hartley
- Haru
- Harvey
- Hash Brown
- Hattie
- Haus
- Havana
- Haven
- Havoc
- Havok
- Hawk
- Hayden
- Haylee
- Hayleigh
- Hayley
- Hazard
- Haze
- Hazel
- Healey
- Heath Robierto Weazel
- Heather
- Hebe
- Hector
- Heidi
- Helga
- Helio
- Helix
- Hellion
- Hemi
- Hemlock
- Hendrix
- Henrietta
- Henry
- Hera
- Herbie
- Hercules
- Herger
- Herman
- Hermes
- Hermione
- Hero
- Hershey
- Hester
- Hestia
- Hi-Ho Silver
- Hicculdy Picculdy {Hiccup}
- Higby
- Higgins
- Hijinx
- Hilda
- Hillary
- Hilli
- Hinata
- Hippo
- Hippy
- His Nibs
- Hissy
- Hito
- Ho-Ho
- Hoagie
- Hob
- Hob Nob
- Hobbes
- Hobbie
- Hobbit
- Hodag
- Hoggle
- Holden
- Holly
- Hollywood
- Holmes
- Hombre
- Homer
- Honey
- Honey Bunny
- Honey Pie
- Hooch
- Hoodinee
- Hoodlum
- Hoodsie
- Hooligan
- Hooper
- Hoover
- Hope {Hopie}
- Hopeful
- Hoppy
- Horus
- Hoss
- Hot Dog
- Hotoko
- Hotshot
- Hotten
- Houdini {Hu-di-nie}
- Howdie
- Howie
- Hrolf
- HubbaBubba
- Huck
- Hudson
- Huey
- Hufflepuff
- Hugga
- Hugo
- Humbug
- Hummars
- Humpfree
- Humphrey
- Hunny Bun
- Huntaloonie
- Hunter
- Hurley
- Hurricane
- Husker
- Hyde
- Hypatia
- Ian
- Ianna
- Ianto
- Ibis
- Icarus
- Ice
- Ice Cube
- Ichabod
- Icharis
- Ichigo
- Ickle
- Iggy
- Igloo
- Iglu
- Ignacious
- Igor
- Iikka
- Ike
- Ikeus
- Ikoo
- Ilda
- Ilori
- Ilsa
- Indica
- Indie
- Indigo
- Indrid
- Indy
- Indy 500
- Inky
- Ino
- Inuyasha
- Ippy
- Ira
- Iris
- Irma
- Iron-Weasel
- Isaac
- Isabell
- Isabella
- Isabella August
- Isabelle
- Isadora
- Isaiah
- Isis
- Isobel
- Issac
- It
- Itachi
- Itchy
- Itsy
- Itty Bits
- Ivana
- Ivannah
- Ivy
- Iwan
- Ixion
- Iyana
- Izumi
- Izzy {Izzy Bug}
- J - Man
- J-Man
- J.J.
- J.R.
- Jaala
- Jaba
- Jabi
- Jacen
- Jaci
- Jack
- Jack Frost
- Jackie {Jacklynn}
- Jackson
- Jaco
- Jacob
- Jada
- Jade
- Jadea
- Jadie
- Jadzia
- Jaeda
- Jager
- Jagermeister
- Jahbu
- Jaina
- Jak
- Jake
- Jake Junior
- Jamara
- Jambi
- James
- Jamocha
- Jampantings { Jammer}
- Jan
- Janae
- Jane
- Janey
- Janice
- Janie
- Jannie
- Japeto
- Jar Jar Binks
- Jared
- Jase
- Jashila
- Jasmine
- Jason
- Jasper {JASS Purr}
- Java
- Jaws
- Jax
- Jaxson {Jax}
- Jay Jay
- Jayden
- Jaydis
- Jaz
- Jazmine
- Jaztin
- Jazz
- Jazzypoo
- JC
- Jean
- Jeanna
- Jedda
- Jeep
- Jeepers
- Jeeves
- Jeg
- Jekyll
- jelly
- Jelly Bean
- Jelly Belly
- Jem
- Jemima
- Jen
- Jenga
- Jenkins
- Jenna
- Jennifer
- Jenny
- Jenny Anydots
- Jensey
- Jeremiah
- Jericho
- Jerrakins
- Jerry
- Jersey
- Jeslynn
- Jess
- Jessa
- Jesse
- Jesse James
- Jessica
- Jessie
- Jester
- Jet
- Jethro
- Jetsam
- Jetta May
- Jewel
- Jewels
- Jeza
- Jezabelle
- Jezza
- Jigsaw
- Jill
- Jilli
- Jillybean
- Jim
- Jimbo
- Jiminy
- Jimmy
- Jimmy Croquette
- Jin
- Jinglebell
- Jingles
- Jink
- Jinx
- Jinxy
- Jip
- Jippy
- Jitterbug
- Jitters
- Joana
- Jocko
- Jodi
- Joe
- Joe Boe
- Joe Dirt
- Joel
- Joey
- Joeybear
- Jogo
- Johann
- Johnathan Bandit
- JohnBoy
- Johnny
- Johnny Smoke
- Jojo
- Jojo-Moosam
- Joker
- Jole
- Jolie
- Jolly Roger
- Jolteon
- Jonah
- Jonas
- Jones
- Jonsie
- Joplin
- Jordan
- Jordie
- Jorge
- Jose
- Joseph
- Josephine
- Josey
- Josh
- Josi
- Josie
- Josie K.
- Josy Anne
- Jovi
- Joxer
- Joy
- Jozi
- JR
- JT
- Juan
- Juana
- Juanita
- Jub-Jub
- Jubei {Ju-Ju}
- Jubilee
- Judge Weasel
- Juggernaut
- JuJu
- Jujubee
- Julep
- Jules
- Julia
- Julie
- JulieAnne
- Juliet
- Julio
- Julius
- Jumanji
- Jumper
- June
- Junebug
- Juni
- Junior
- Juno
- Jupiter
- Justice
- Justin
- Justine
- Jynx
- Jypsie
- Jyslin