225Waardenburg Syndrome (WS) (瓦登伯革氏症侯群)
226Waldenstrom's Macroglobulinemia (WM) (華氏巨頭蛋白血症)
227Walker-Warburg Syndrome (WWS) (Walker-Warburg綜合症)
228WDR45 (Genetic Disorder)
229Wells Syndrome (韋爾斯綜合症)
230West Syndrome-Infantile Spasms (韋氏症-嬰兒痙攣症)
231Williams Syndrome (WS) (威廉氏症候群)
232Wilson's Disease (WD) (威爾森氏症)
233Wolf-Hirschhorn Syndrome (WHS) (沃夫-賀許宏氏症候群)
234Wolfram Syndrome (Wolfram症候群)
235Worster-Drought Syndrome (WDS)
236WWOX Syndrome (Genetic Disorder)