WBloom syndrome
WBruck syndrome
WCat eye syndrome
WCornelia de Lange syndrome
WEllis–van Creveld syndrome
WFloating–Harbor syndrome
WGAPO syndrome
WGómez–López-Hernández syndrome
WLanger–Giedion syndrome
WLaron syndrome
WLujan–Fryns syndrome
WNijmegen breakage syndrome
WNoonan syndrome
WRAPADILINO syndrome
WRobinow syndrome
WRothmund–Thomson syndrome
WSilver–Russell syndrome
WSmith–Fineman–Myers syndrome
WTurner syndrome
WWerner syndrome