Eponyms beginning with G
- Grocco's triangle
- Grocco-Frugoni sign
- Grocco-Poncet disease
- Grocco-Rauchfuss triangle
- Groenouw's dystrophy II
- Groenouw's syndrome
- Groenouw's syndrome II
- Groenouw-Fleischer dystrophy
- Groenouw’s cornea dystrophy
- Groenouw’s dystrophy I
- Grönblad-Strandberg syndrome
- Grönblad-Strandberg-Touraine syndrome
- Grosser’s organ
- Gruber's hernia
- Gruber-Meckel syndrome
- Gruber-Widal reaction (Georges Fernand Isidore Widal)
- Gruber’s syndrome
- Gruby's disease
- Grudzinski's osteochondropathy
- Grund's syndrome
- Gsell-Erdheim syndrome
- Guam Parkinsonism-dementia
- Guamian ALS-parkinsonism-dementia complex
- Guamian amyotrophic lateral sclerosis
- Gubler's level