Giagiaphobia Fear of your grandmother.
Giaourtiophobia Fear of yogurts . (branch of Gustatophobia / Cibophobia)
Gibbonphobia Fear of gibbons . (branch of Zoophobia)
Gigantasophobia Fear of tall people . (branch of Anthropophobia)
Gigaphobia Fear of the number 1,000,000,000 . (branch of Numerophobia)
Gingerbreadphobia Fear of gingerbread . (branch of Cibophobia)
Gingerphobia Fear of orange-haired people . (branch of Anthropophobia)
Glaucophobia Fear of gray . (branch of Chromophobia)
Gleifitzouriphobia Fear of lollipops . (branch of Cibophobia)
Gleymophobia Fear of eyeglasses.
Globophobia Fear of balloons.
Gloriaphobia Fear of thrillers.
Glossaphobia Fear of tongues.
Glossophobia Fear of speaking in public or of trying to speak.
Gnosiophobia Fear of knowledge.
Gokarrophobia Fear of go-carts . (branch of Ochophobia)
Goldenretrieverphobia Fear of Golden Retrievers . (branch of Cynophobia / Zoophobia)
Golfkarrophobia Fear of golf carts . (branch of Ochophobia)
Golfphobia Fear of golf.
Gonatophobia Fear of knees.
Goneaphobia Fear of your parents.
Goofyphobia Fear of Goofy . (branch of Kyrofelonoshophobia)
Googlephobia Fear of search engines.
Googolphobia Fear of the number googol . (branch of Numerophobia)
Gouwuchephobia Fear of shopping carts.
Grafeiophobia Fear of desks (branch of Epiplaphobia / Oikophobia)
Graffitiphobia Fear of graffiti.
Grammaphobia Fear of letters (branch of Panophobia)
Grammatosimophobia Fear of postal stamps.
Grandmathoraphobia Fear of Grandma Thora from Arthur . (branch of Kyrofelonoshophobia)
Grandophobia Fear of hail . (branch of Tempestaphobia / Meteophobia)
Grandpadavephobia Fear of Grandpa Dave from Arthur . (branch of Kyrofelonoshophobia)
Grandslamwichphobia Fear of grand slamwich.
Graphophobia Fear of writing or handwriting.
Grasartophobia Fear of tumbleweeds . (branch of Botanophobia)
Gratiarophobia Fear of Thanksgiving . (branch of Heortophobia)
Grokephobia Fear of the Groke . (branch of Kyrofelonoshophobia)
Gronthokopophobia Fear of getting punched.
Grothophobia Fear of getting punched.
Gufuphobia Fear of your uncle that is your father's brother-in-law.