184Waardenburg Syndrome (WS) (瓦登伯革氏症侯群)
185Walker-Warburg Syndrome (WWS) (Walker-Warburg綜合症)
186WDR45 (Genetic Disorder)
187Wells Syndrome (韋爾斯綜合症)
188West Syndrome-Infantile Spasms (韋氏症-嬰兒痙攣症)
189Williams Syndrome (WS) (威廉氏症候群)
190Wilson's Disease (WD) (威爾森氏症)
191Wolf–Hirschhorn Syndrome (WHS) (沃夫-賀許宏氏症候群)
192Wolfram Syndrome (Wolfram症候群)
193Worster-Drought Syndrome (WDS) (藍道-克萊富勒症候群)
194WWOX Syndrome (Genetic Disorder)