legendary beings list : G

• Gaasyendietha (Seneca) - Dragon
• Gagana (Russian) - Bird with iron beak and copper talons
• Gaki (Japanese) - Ghosts of especially greedy people
• Gallu (Mesopotamian) - Underworld demons
• Galtzagorriak (Basque) - Diminutive, demonic servants
• Gamayun (Russian) - Prophetic bird with human head
• Gana (Hindu) - Attendants of Shiva
• Gancanagh (Irish) - Male fairy that seduces human women
• Gandaberunda (Hindu) - Double-headed bird
• Gandharva (Hindu) - Male nature spirits, often depicted as part human, part animal
• Gargouille (French) - Water dragon
• Garmr (Norse) - Giant, ravenous wolf
• Garuda (Hindu) - Human-eagle hybrid
• Gaueko (Basque) - Wolf capable of walking upright
• Ged (Heraldic) - The fish pike
• Gegenees (Greek) - Six-armed giant
• Genie (Arabian) - Elemental spirit
• Genius loci (Roman) - Spirit that protects a specific place
• German (Slavic) - Male spirit associated with bringing rain and hail
• Geryon (Greek) - Giant with three heads, six arms, three torsos and (in some sources) six legs
• Ghillie Dhu (Scottish) - Tree guardian
• Ghost - Disembodied spirits, specifically of those that have died
• Ghoul (Arabian) - Earth genie. Also a shapeshifting desert anthropophagus
• Giant (mythology)
• Giant animal (mythology)
• Gichi-anami'e-bizhiw (Ojibwa) - Bison-snake-bird-cougar hybrid and water spirit
• Gidim (Sumerian) - Ghost
• Gigantes (Greek) - Race of giants that fought the Olympian gods, sometimes depicted with snake-legs
• Gigelorum (Scottish) - Smallest animal
• Girtablilu (Akkadian) - Human-scorpion hybrid
• Gjenganger (Scandinavian) - Corporeal ghost
• Glaistig (Scottish) - Human-goat hybrid
• Glashtyn (Manx) - Malevolent water horse
• Gnome (Alchemy) - Diminutive Earth elemental
• Goblin (Medieval) - Grotesque, mischievous little people
• Gog (English) - Giant protector of London
• Gold-digging ant (Medieval Bestiaries) - Dog-sized ant that digs for gold in sandy areas
• Golem (Jewish) - Animated construct
• Gorgades (Medieval Bestiary) - Hairy humanoid
• Gorgon (Greek) - Fanged, snake-haired humanoids that turn anyone who sees them into stone
• Goryō (Japanese) - Vengeful ghosts, usually of martyrs
• Gremlin (Folklore) - Goblins that sabotage airplanes
• Griffin (Heraldic) - Lion-eagle hybrid
• Grigori (Christian) - Fallen angels
• Grim (English and Scandinavian) - Tutelary spirits of churches
• Grindylow (English) - Malevolent water spirit
• Grine (Moroccan) - Genie duplicate of a person. Lives in a parallel world
• Gualichu (Mapuche) - Malevolent spirit
• Gud-elim (Akkadian) - Human-bull hybrid
• Guhin (Japanese) - Anthropomorphic bird
• Gui Po (Chinese) - Ghost that manifests as an old woman
• Gui Shu (Chinese) - Ghostly tree that confuses travelers by moving
• Gulon (Germanic) - Gluttonous dog-cat-fox hybrid
• Gumiho (Korean mythology)- A demon fox with thousands of tails. Believed to possess an army of spirits and magic in its tails.
• Gwyllgi (Welsh) - black dog
• Gwyllion (Welsh) - Malevolent spirit
• Gyascutus (American folklore) - Four-legged herbivore
• Gytrash (Lincolnshire and Yorkshire) - black dog
• Gyūki (Japanese) - Bull-headed monster