W1p36 deletion syndrome
WAlport syndrome
WAyazi syndrome
WBangstad syndrome
WBarakat syndromeWBranchio-oto-renal syndrome
WCHARGE syndromeWCrandall syndromeWDeSanctis–Cacchione syndromeWDonnai–Barrow syndromeWEctrodactyly–ectodermal dysplasia–cleft syndrome
WEnlarged vestibular aqueductWFechtner syndromeWFlynn–Aird syndrome
WFountain syndrome
WHurler syndromeWMucopolysaccharidosis type I
WJervell and Lange-Nielsen syndromeWJohnson–McMillin syndrome
WKabuki syndromeWKeutel syndromeWMarshall syndrome
WMERRF syndromeWMohr–Tranebjærg syndromeWMyhre syndromeWNager acrofacial dysostosis
WNoonan syndrome with multiple lentiginesWTownes–Brocks syndrome
WWaardenburg syndromeWWaardenburg Syndrome Type 2DWWeissenbacher–Zweymüller syndrome