Here you’ll find 43 Male costume ideas that start with G, organized from “G-Man” to “Guy Fawkes”. They mix pop-culture characters, historical roles, and playful archetypes for Halloween, cosplay, and themed parties.

Male costume ideas that start with G are concise labels for outfits you can build or buy. Many come from comics, history, and folklore — like Gandalf or Guy Fawkes — and stay instantly recognizable.

Below you’ll find the table with origin and required pieces.

Origin: Shows the character, era, or genre so you can spot cultural background and match event themes.

Required pieces: Lists three to six essential items you need to build or buy the costume, saving you time and guesswork.

Male costume ideas that start with G

NameOriginRequired piecesBuy/DIY
Gandalffictional — Tolkiengrey robe, pointed hat, staff, long beard, cloakBuy or DIY 3
Green Lanternfictional — DCgreen suit, emblem chest piece, power ring, mask, green bootsBuy or DIY 4
Green Goblinfictional — Marvelgreen mask, armor tunic, purple pants, glider prop, pumpkin bombBuy or DIY 4
Ghost Riderfictional — Marvelleather jacket, flaming skull mask or makeup, chains, glovesBuy or DIY 4
Gambitfictional — Marveltrench coat, staff, playing cards, chest armor, headpieceBuy or DIY 4
Grootfictional — Marvelfull-body bark suit, branch mask, leaf accents, brown glovesBuy or DIY 4
Grufictional — Illuminationgrey coat, striped scarf, bald cap or shaved look, black bootsBuy or DIY 2
Gastonfictional — Disneyred shirt, brown boots, belt, gauntlets, styled hairBuy or DIY 2
Gomez Addamsfictional — Addams Familypinstripe suit, mustache, slick hair, cane, tieBuy or DIY 2
Gladiatorhistorical — Ancient Romeleather skirt, breastplate, helmet, sword, shieldBuy or DIY 3
Gangstersubculture — 1920spinstripe suit, fedora, tie, pocket watch, dress shoesBuy or DIY 2
Greasersubculture — 1950sleather jacket, white tee, jeans, pompadour wig, bootsBuy or DIY 2
G.I. Joefictional — Hasbrocamo fatigues, dog tags, helmet, combat boots, rifle propBuy or DIY 3
George Washingtonhistorical — 18th centurycolonial coat, white wig, tricorn hat, breeches, sashBuy or DIY 3
Guy Fawkeshistorical — 17th centuryperiod coat, tricorn hat, mask, sash, pistol propBuy or DIY 2
Ghostfacefictional — Screamblack cloak, Ghostface mask, knife propBuy 1
Green Arrowfictional — DChooded tunic, bow, arrows, mask, quiverBuy or DIY 3
Genghis Khanhistorical — Mongolfur coat, leather boots, helmet, sword, braided wigBuy or DIY 3
Ghostbusterfictional — 1980s filmjumpsuit, proton pack, name patch, ghost trapBuy or DIY 3
Geniemythic — folkloreharem pants, vest, gold cuffs, topknot, body paintBuy or DIY 3
Grim Reapermythic — folkloreblack robe, hood, scythe, skull mask, glovesBuy or DIY 2
Grinchfictional — Dr. Seussgreen fur suit or makeup, Santa coat, red hat, glovesBuy or DIY 3
Goofyfictional — Disneydog suit or costume, orange shirt, green hat, vestBuy or DIY 4
Gorillaanimalfull fur suit, mask, gloves, pawsBuy or DIY 1
Golemmythic — folklorestone-like armor, gray makeup, tattered robesDIY 3
Goliathbiblical — Biblegiant armor, helmet, spear, sandals, chestplateBuy or DIY 3
Gunslingerarchetype — Wild Westduster coat, cowboy hat, holster, toy revolver, bootsBuy or DIY 2
G-Manoccupation — FBIsuit, fedora, badge, briefcase, pistol propBuy or DIY 2
Green Hornetfictional — pulpmask, fedora, green scarf, suit, caneBuy or DIY 3
Gill-manfictional — classic horrorscaled suit, gill mask, webbed gloves, finsBuy or DIY 4
Gravediggeroccupation — cemeteryspade, work coat, gloves, dirt-smudged clothes, hatDIY 2
Gordon Freemanfictional — Half‑Lifeorange coveralls or HEV suit, crowbar, glasses, goateeBuy or DIY 3
Gatsbyfictional — 1920s novelthree-piece suit, pocket watch, tie, polished shoes, slick hairBuy or DIY 2
Goldfingerfictional — Bondtuxedo, gold accents, gloved hand prop, slicked hairBuy or DIY 3
Generaloccupation — militarydress uniform or coat, medals, cap, sashBuy or DIY 2
Green Beretoccupation — militarycamouflage uniform, green beret, patches, combat bootsBuy or DIY 3
Galactusfictional — Marvelarmored helmet, cosmic armor, purple suit, large bootsBuy or DIY 5
Griffinmythic — mythologywings, beak mask, feathered bodysuit, talon glovesBuy or DIY 4
Gremlinfictional — 1980s filmscaled suit, ear mask, mischievous makeup, small propsBuy or DIY 3
Ghoulmythic — horrortattered clothes, pale makeup, fake teeth, dirt smudgingDIY 2
General Grievousfictional — Star Warsrobotic armor, mask, cape, multiple lightsaber propsBuy or DIY 5
Green Manmythic — folkloreleafy mask, green body paint, vine accents, robesDIY 3
Grizzly Bearanimalfur suit, bear mask, paw glovesBuy or DIY 2

Descriptions

Gandalf
Iconic wizard costume; great for fantasy fans and conventions, instantly recognizable.
Green Lantern
Classic comic-book hero look centered on the glowing ring and green costume.
Green Goblin
Spider-Man’s archenemy—a theatrical, villainous cosplay with bright green and purple details.
Ghost Rider
Burning-skulled antihero; great for edgy Halloween or comic-con cosplay.
Gambit
Stylish X‑Man with a Cajun flair—great for comic fans and action poses.
Groot
Beloved tree creature; expressive, sculptural costume ideal for cosplay.
Gru
Despicable Me’s bossy antihero; easy to pull off with casual pieces and bald styling.
Gaston
Overconfident antagonist from Beauty and the Beast; perfect for theatrical parties.
Gomez Addams
Suave, eccentric patriarch—classic retro formalwear for spooky-themed events.
Gladiator
Timeless warrior costume inspired by Roman fighters and popular films.
Gangster
Roaring Twenties mobster look—perfect for themed parties and vintage vibes.
Greaser
1950s greaser style—cool, simple, and masculine for retro costume nights.
G.I. Joe
Action-figure inspired military look popular for Halloween and conventions.
George Washington
Founding‑father costume for parades, school events, and history themes.
Guy Fawkes
Infamous historical figure and protest icon—recognizable via the Guy Fawkes mask.
Ghostface
Simple, instantly recognizable horror costume from the Scream films.
Green Arrow
Archer superhero look—great for cosplay with practical prop accessories.
Genghis Khan
Bold historical warrior costume; best for historically themed events or dramatic cosplay.
Ghostbuster
Pop-culture classic—fun group costume with recognizable gear.
Genie
Aladdin-style or mythic genie look; playful and theatrical for parties.
Grim Reaper
Classic Halloween staple—dark, dramatic, and easy to adapt.
Grinch
Mischievous holiday character; works well for seasonal events with a comedic edge.
Goofy
Cartoonish Disney character—playful oversized costume for theme parks or Halloween.
Gorilla
Timeless, easy animal costume—often humorous and widely available.
Golem
Clay or stone creature from folklore; textured makeup and armor create the look.
Goliath
Biblical giant—dramatic warrior costume for theatrical or themed events.
Gunslinger
Western outlaw or sheriff vibe—great for saloon-themed parties and cosplay.
G-Man
Retro federal agent look; short and evocative for 1940s or noir themes.
Green Hornet
Masked vigilante with a classic pulp-era style for comic fans.
Gill-man
Creature From the Black Lagoon costume; iconic for classic monster nights.
Gravedigger
Creepy, low-cost Halloween option with makeup and a shovel prop.
Gordon Freeman
Beloved video-game scientist/hero; recognizable to gamers and cosplayers.
Gatsby
1920s gentleman style inspired by The Great Gatsby—elegant party attire.
Goldfinger
Classic Bond villain; glamorous and theatrical for themed events.
General
Formal military costume option adaptable for many eras and settings.
Green Beret
Modern special-forces look—sharp and instantly identifiable.
Galactus
Massive cosmic villain—complex cosplay with bold sculptural elements.
Griffin
Mythical hybrid creature costume—impressive for fantasy conventions.
Gremlin
Chaotic creature costume from Gremlins; fun for groups or couples.
Ghoul
Undead monster look perfect for Halloween with inexpensive makeup.
General Grievous
Complex Star Wars villain cosplay, striking in group settings.
Green Man
Forestry spirit costume—earthy and striking for pagan or nature themes.
Grizzly Bear
Powerful animal costume; good for playful or intimidating looks at events.
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