204Waardenburg Syndrome (WS) (瓦登伯革氏症侯群)
205Walker-Warburg Syndrome (WWS) (Walker-Warburg綜合症)
206WDR45 (Genetic Disorder)
207Wells Syndrome (韋爾斯綜合症)
208West Syndrome-Infantile Spasms (韋氏症-嬰兒痙攣症)
209Williams Syndrome (WS) (威廉氏症候群)
210Wilson's Disease (WD) (威爾森氏症)
211Wolf-Hirschhorn Syndrome (WHS) (沃夫-賀許宏氏症候群)
212Wolfram Syndrome (Wolfram症候群)
213Worster-Drought Syndrome (WDS)
214WWOX Syndrome (Genetic Disorder)