230Waardenburg Syndrome (WS) (瓦登伯革氏症侯群)
231Waldenstrom's Macroglobulinemia (WM) (華氏巨頭蛋白血症)
232Walker-Warburg Syndrome (WWS) (Walker-Warburg綜合症)
233WDR45 (Genetic Disorder)
234Wells Syndrome (韋爾斯綜合症)
235West Syndrome-Infantile Spasms (韋氏症-嬰兒痙攣症)
236Williams Syndrome (WS) (威廉氏症候群)
237Wilson's Disease (WD) (威爾遜氏症)
238Wolf-Hirschhorn Syndrome (WHS) (沃夫-賀許宏氏症候群)
239Wolfram Syndrome (Wolfram症候群)
240Worster-Drought Syndrome (WDS)
241WWOX Syndrome (Genetic Disorder)