Eponyms beginning with W
- Widal, Abrami and Brulé haemolytic icterus
- Widal-Abrami-Lermoyez triad (M. Fernand Widal)
- Widal-Lermoyez syndrome (M. Fernand Widal)
- Widal-Ravaut disease
- Widal’s reaction
- Widal’s syndrome
- Widal’s test
- Wiedemann's dysmelia syndrome
- Wiedemann's syndrome
- Wiedemann's syndrome I
- Wiedemann-Beckwith syndrome
- Wiedemann-Beckwith-Combs syndrome
- Wiedemann-Lenz syndrome
- Wiedemann-Rautenstrauch syndrome
- Wiedemann-Spranger disease
- Wiedemann-Spranger metaphyseal chondrodysplasia syndrome
- Wiedemann-Tolksdorf syndrome
- Wiedemann’s syndrome
- Wildervanck's syndrome I
- Wildervanck's syndrome II
- Wildervanck's syndrome III
- Wildervanck's syndrome IV
- Wildervanck-Smith syndrome
- Wildervanck-Waardenburg-Franceschetti-Klein syndrome
- Wilkins' disease